Question: What town's OS grid reference is SP1579?
Choices:
Wigan
Solihull
Ilford
Edmonton
Falkirk
Worthing
Harrow
Fulham
Royal Tunbridge Wells
South Shields
Answer: Solihull
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "town" . ?e <OS_grid_reference> ?pv . ?pv <pred:value> "SP1579" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: OS grid reference
SP1579
function: FilterConcept
dependencies: 1
inputs: town
function: What
dependencies: 2