Question: What is the ICAO airline designator of the organization whose airline callsign is AMERICAN?
Choices: QFA
UAL
RFR
DAL
PAA
DLH
KLM
EZY
RYR
AAL
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "organization" . ?e <callsign_of_airline> ?pv_1 . ?pv_1 <pred:value> "AMERICAN" . ?e <ICAO_airline_designator> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: callsign of airline
AMERICAN
function: FilterConcept
dependencies: 1
inputs: organization
function: QueryAttr
dependencies: 2
inputs: ICAO airline designator
Answer: AAL