Question: The vitamin niacin is contained in how many different food ingredients?
Choices:
1
2
3
4
5
6
7
8
9
10
Answer: 5
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "food ingredient" . ?e <nutrient> ?e_1 . ?e_1 <pred:name> "niacin" .   }
Program:
function: Find
inputs: niacin
function: Relate
dependencies: 0
inputs: nutrient
backward
function: FilterConcept
dependencies: 1
inputs: food ingredient
function: Count
dependencies: 2