Question: How many spheres of mathematics comprise the work field of David Hilbert?
Choices:
0
1
2
3
4
5
6
7
8
9
Answer: 2
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "mathematics" . ?e_1 <field_of_work> ?e . ?e_1 <pred:name> "David Hilbert" .   }
Program:
function: Find
inputs: David Hilbert
function: Relate
dependencies: 0
inputs: field of work
forward
function: FilterConcept
dependencies: 1
inputs: mathematics
function: Count
dependencies: 2