14980
Inspectors also returned to a former helicopter airfield where Iraq buried bombs it says were armed with biological weapons in 1991 .
 geographical social political: Iraq; geographical social political: it; person: Inspectors; facility: a former helicopter airfield; facility: where; vehicle: helicopter; weapon: bombs it says were armed with biological weapons; weapon: biological weapons
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
 Entities: Iraq, it, Inspectors, a former helicopter airfield, where, helicopter, bombs it says were armed with biological weapons, biological weapons 
Answer:
 geographical social political: Iraq; geographical social political: it; person: Inspectors; facility: a former helicopter airfield; facility: where; vehicle: helicopter; weapon: bombs it says were armed with biological weapons; weapon: biological weapons