give me the number of patients whose primary disease is neoplasm of uncertain behavior of other lymphatic and hematopoietic tissues\bone marrow transplant and admission year is less than 2197?
CREATE TABLE lab (
    subject_id text,
    hadm_id text,
    itemid text,
    charttime text,
    flag text,
    value_unit text,
    label text,
    fluid text
)

CREATE TABLE diagnoses (
    subject_id text,
    hadm_id text,
    icd9_code text,
    short_title text,
    long_title text
)

CREATE TABLE prescriptions (
    subject_id text,
    hadm_id text,
    icustay_id text,
    drug_type text,
    drug text,
    formulary_drug_cd text,
    route text,
    drug_dose text
)

CREATE TABLE demographic (
    subject_id text,
    hadm_id text,
    name text,
    marital_status text,
    age text,
    dob text,
    gender text,
    language text,
    religion text,
    admission_type text,
    days_stay text,
    insurance text,
    ethnicity text,
    expire_flag text,
    admission_location text,
    discharge_location text,
    diagnosis text,
    dod text,
    dob_year text,
    dod_year text,
    admittime text,
    dischtime text,
    admityear text
)

CREATE TABLE procedures (
    subject_id text,
    hadm_id text,
    icd9_code text,
    short_title text,
    long_title text
)
SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic WHERE demographic.diagnosis = "NEOPLASM OF UNCERTAIN BEHAVIOR OF OTHER LYMPHATIC AND HEMATOPOIETIC TISSUES\BONE MARROW TRANSPLANT" AND demographic.admityear < "2197"
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: give me the number of patients whose primary disease is neoplasm of uncertain behavior of other lymphatic and hematopoietic tissues\bone marrow transplant and admission year is less than 2197? ### Input: CREATE TABLE lab (
    subject_id text,
    hadm_id text,
    itemid text,
    charttime text,
    flag text,
    value_unit text,
    label text,
    fluid text
)

CREATE TABLE diagnoses (
    subject_id text,
    hadm_id text,
    icd9_code text,
    short_title text,
    long_title text
)

CREATE TABLE prescriptions (
    subject_id text,
    hadm_id text,
    icustay_id text,
    drug_type text,
    drug text,
    formulary_drug_cd text,
    route text,
    drug_dose text
)

CREATE TABLE demographic (
    subject_id text,
    hadm_id text,
    name text,
    marital_status text,
    age text,
    dob text,
    gender text,
    language text,
    religion text,
    admission_type text,
    days_stay text,
    insurance text,
    ethnicity text,
    expire_flag text,
    admission_location text,
    discharge_location text,
    diagnosis text,
    dod text,
    dob_year text,
    dod_year text,
    admittime text,
    dischtime text,
    admityear text
)

CREATE TABLE procedures (
    subject_id text,
    hadm_id text,
    icd9_code text,
    short_title text,
    long_title text
) ### Response: SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic WHERE demographic.diagnosis = "NEOPLASM OF UNCERTAIN BEHAVIOR OF OTHER LYMPHATIC AND HEMATOPOIETIC TISSUES\BONE MARROW TRANSPLANT" AND demographic.admityear < "2197"