what is the four most frequent drugs that were prescribed in the same hospital encounter to the patients of age 30s since 5 years ago after having been diagnosed with s/p exploratory laparotomy.
CREATE TABLE lab (
    labid number,
    patientunitstayid number,
    labname text,
    labresult number,
    labresulttime time
)

CREATE TABLE microlab (
    microlabid number,
    patientunitstayid number,
    culturesite text,
    organism text,
    culturetakentime time
)

CREATE TABLE intakeoutput (
    intakeoutputid number,
    patientunitstayid number,
    cellpath text,
    celllabel text,
    cellvaluenumeric number,
    intakeoutputtime time
)

CREATE TABLE vitalperiodic (
    vitalperiodicid number,
    patientunitstayid number,
    temperature number,
    sao2 number,
    heartrate number,
    respiration number,
    systemicsystolic number,
    systemicdiastolic number,
    systemicmean number,
    observationtime time
)

CREATE TABLE cost (
    costid number,
    uniquepid text,
    patienthealthsystemstayid number,
    eventtype text,
    eventid number,
    chargetime time,
    cost number
)

CREATE TABLE treatment (
    treatmentid number,
    patientunitstayid number,
    treatmentname text,
    treatmenttime time
)

CREATE TABLE medication (
    medicationid number,
    patientunitstayid number,
    drugname text,
    dosage text,
    routeadmin text,
    drugstarttime time,
    drugstoptime time
)

CREATE TABLE patient (
    uniquepid text,
    patienthealthsystemstayid number,
    patientunitstayid number,
    gender text,
    age text,
    ethnicity text,
    hospitalid number,
    wardid number,
    admissionheight number,
    admissionweight number,
    dischargeweight number,
    hospitaladmittime time,
    hospitaladmitsource text,
    unitadmittime time,
    unitdischargetime time,
    hospitaldischargetime time,
    hospitaldischargestatus text
)

CREATE TABLE allergy (
    allergyid number,
    patientunitstayid number,
    drugname text,
    allergyname text,
    allergytime time
)

CREATE TABLE diagnosis (
    diagnosisid number,
    patientunitstayid number,
    diagnosisname text,
    diagnosistime time,
    icd9code text
)
SELECT t3.drugname FROM (SELECT t2.drugname, DENSE_RANK() OVER (ORDER BY COUNT(*) DESC) AS c1 FROM (SELECT patient.uniquepid, diagnosis.diagnosistime, patient.patienthealthsystemstayid FROM diagnosis JOIN patient ON diagnosis.patientunitstayid = patient.patientunitstayid WHERE diagnosis.diagnosisname = 's/p exploratory laparotomy' AND DATETIME(diagnosis.diagnosistime) >= DATETIME(CURRENT_TIME(), '-5 year')) AS t1 JOIN (SELECT patient.uniquepid, medication.drugname, medication.drugstarttime, patient.patienthealthsystemstayid FROM medication JOIN patient ON medication.patientunitstayid = patient.patientunitstayid WHERE patient.age BETWEEN 30 AND 39 AND DATETIME(medication.drugstarttime) >= DATETIME(CURRENT_TIME(), '-5 year')) AS t2 ON t1.uniquepid = t2.uniquepid WHERE t1.diagnosistime < t2.drugstarttime AND t1.patienthealthsystemstayid = t2.patienthealthsystemstayid GROUP BY t2.drugname) AS t3 WHERE t3.c1 <= 4
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: what is the four most frequent drugs that were prescribed in the same hospital encounter to the patients of age 30s since 5 years ago after having been diagnosed with s/p exploratory laparotomy. ### Input: CREATE TABLE lab (
    labid number,
    patientunitstayid number,
    labname text,
    labresult number,
    labresulttime time
)

CREATE TABLE microlab (
    microlabid number,
    patientunitstayid number,
    culturesite text,
    organism text,
    culturetakentime time
)

CREATE TABLE intakeoutput (
    intakeoutputid number,
    patientunitstayid number,
    cellpath text,
    celllabel text,
    cellvaluenumeric number,
    intakeoutputtime time
)

CREATE TABLE vitalperiodic (
    vitalperiodicid number,
    patientunitstayid number,
    temperature number,
    sao2 number,
    heartrate number,
    respiration number,
    systemicsystolic number,
    systemicdiastolic number,
    systemicmean number,
    observationtime time
)

CREATE TABLE cost (
    costid number,
    uniquepid text,
    patienthealthsystemstayid number,
    eventtype text,
    eventid number,
    chargetime time,
    cost number
)

CREATE TABLE treatment (
    treatmentid number,
    patientunitstayid number,
    treatmentname text,
    treatmenttime time
)

CREATE TABLE medication (
    medicationid number,
    patientunitstayid number,
    drugname text,
    dosage text,
    routeadmin text,
    drugstarttime time,
    drugstoptime time
)

CREATE TABLE patient (
    uniquepid text,
    patienthealthsystemstayid number,
    patientunitstayid number,
    gender text,
    age text,
    ethnicity text,
    hospitalid number,
    wardid number,
    admissionheight number,
    admissionweight number,
    dischargeweight number,
    hospitaladmittime time,
    hospitaladmitsource text,
    unitadmittime time,
    unitdischargetime time,
    hospitaldischargetime time,
    hospitaldischargestatus text
)

CREATE TABLE allergy (
    allergyid number,
    patientunitstayid number,
    drugname text,
    allergyname text,
    allergytime time
)

CREATE TABLE diagnosis (
    diagnosisid number,
    patientunitstayid number,
    diagnosisname text,
    diagnosistime time,
    icd9code text
) ### Response: SELECT t3.drugname FROM (SELECT t2.drugname, DENSE_RANK() OVER (ORDER BY COUNT(*) DESC) AS c1 FROM (SELECT patient.uniquepid, diagnosis.diagnosistime, patient.patienthealthsystemstayid FROM diagnosis JOIN patient ON diagnosis.patientunitstayid = patient.patientunitstayid WHERE diagnosis.diagnosisname = 's/p exploratory laparotomy' AND DATETIME(diagnosis.diagnosistime) >= DATETIME(CURRENT_TIME(), '-5 year')) AS t1 JOIN (SELECT patient.uniquepid, medication.drugname, medication.drugstarttime, patient.patienthealthsystemstayid FROM medication JOIN patient ON medication.patientunitstayid = patient.patientunitstayid WHERE patient.age BETWEEN 30 AND 39 AND DATETIME(medication.drugstarttime) >= DATETIME(CURRENT_TIME(), '-5 year')) AS t2 ON t1.uniquepid = t2.uniquepid WHERE t1.diagnosistime < t2.drugstarttime AND t1.patienthealthsystemstayid = t2.patienthealthsystemstayid GROUP BY t2.drugname) AS t3 WHERE t3.c1 <= 4