Question: What college of the  University of Oxford was attended by Winston Churchill, who died on 1688-03-26?
Choices:
Lady Margaret Hall
Keble College
Magdalen College
Brasenose College
St Edmund Hall
Jesus College
Somerville College
St John's College
The Queen's College
Lincoln College
Answer: St John's College
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "college of the University of Oxford" . ?e_1 <educated_at> ?e . ?e_1 <pred:name> "Winston Churchill" . ?e_1 <date_of_death> ?pv . ?pv <pred:date> "1688-03-26"^^xsd:date .   }
Program:
function: Find
inputs: Winston Churchill
function: FilterDate
dependencies: 0
inputs: date of death
1688-03-26
=
function: Relate
dependencies: 1
inputs: educated at
forward
function: FilterConcept
dependencies: 2
inputs: college of the University of Oxford
function: What
dependencies: 3