Question: Since when has James Hetfield been a part of Metallica (the one that has the record label Mercury Records)?
Choices: 1939-10-28
2000-10-15
2006
1839-03-04
1801-05-02
1956-12-06
1981
1667
1993-01-19
1999-01-10
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Metallica" . ?e_1 <record_label> ?e_3 . ?e_3 <pred:name> "Mercury Records" . ?e_2 <pred:name> "James Hetfield" . ?e_1 <has_part> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <has_part> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Mercury Records
function: Relate
dependencies: 0
inputs: record label
backward
function: Find
inputs: Metallica
function: And
dependencies: 1
2
function: Find
inputs: James Hetfield
function: QueryRelationQualifier
dependencies: 3
4
inputs: has part
start time
Answer: 1981