Question: What is the profession of amateur radio callsign W4CGP (the start time of this statement is 1998)?
Choices: samurai
record producer
winger
power forward
columnist
guitarist
poet
Gulzar
singer-songwriter
songwriter
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "occupation" . ?e_1 <occupation> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_1 <amateur_radio_callsign> ?pv . ?pv <pred:value> "W4CGP" . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <amateur_radio_callsign> ; <pred:fact_t> ?pv ] <start_time> ?qpv . ?qpv <pred:year> 1998 .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: amateur radio callsign
W4CGP
function: QFilterYear
dependencies: 1
inputs: start time
1998
=
function: FilterConcept
dependencies: 2
inputs: human
function: Relate
dependencies: 3
inputs: occupation
forward
function: FilterConcept
dependencies: 4
inputs: occupation
function: What
dependencies: 5
Answer: record producer