• Objects and Landmarks -The expected PoS for Objects and Landmarks are: DT/JJ/VBG/VBD/NN for the first word, JJ/VBG/VBD/NN for the middle words, and NN for the last word.
if there is a PoS mismatch, we perform the following replacements (if there is only one word in an Object or Landmark, we replace it with "thing" (NN)): -HWord 1 ⇒"the" (DT) -HWord mid ⇒"unknown" (JJ) (multiple times) -HWord last ⇒"thing" (NN) To illustrate this process, consider the heard Object "to:TO battle:NN played:VB", which is replaced with "the:DT battle:NN thing:NN".