Question: What town was John Hughes,  whose date of birth is 1814-01-01, born
Choices: Doncaster
Wigan
Macclesfield
Colchester
South Shields
Merthyr Tydfil
Newmarket
Torquay
Royal Tunbridge Wells
Edmonton
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "town" . ?e_1 <place_of_birth> ?e . ?e_1 <pred:name> "John Hughes" . ?e_1 <date_of_birth> ?pv . ?pv <pred:date> "1814-01-01"^^xsd:date .   }
Program:
function: Find
inputs: John Hughes
function: FilterDate
dependencies: 0
inputs: date of birth
1814-01-01
=
function: Relate
dependencies: 1
inputs: place of birth
forward
function: FilterConcept
dependencies: 2
inputs: town
function: What
dependencies: 3
Answer: Merthyr Tydfil