Question: When did Ludwig van Beethoven whose name in native language is Ludwig van Beethoven become a student of Joseph Haydn?
Choices:
-168
1960-09-30
1975-01-01
1721-10-11
-8000
1792
1910-01-01
2018-12-01
1815-06-09
1789-04-30
Answer: 1792
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Ludwig van Beethoven" . ?e_1 <name_in_native_language> ?pv . ?pv <pred:value> "Ludwig van Beethoven" . ?e_2 <pred:name> "Joseph Haydn" . ?e_1 <student_of> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <student_of> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Ludwig van Beethoven
function: FilterStr
dependencies: 0
inputs: name in native language
Ludwig van Beethoven
function: Find
inputs: Joseph Haydn
function: QueryRelationQualifier
dependencies: 1
2
inputs: student of
start time