Question: Does the London area, that is David Bowie's birthplace (the one whose ISNI is 0000 0001 1444 8576), have an OS grid reference equal to TQ315755?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "area of London" . ?e_1 <place_of_birth> ?e . ?e_1 <pred:name> "David Bowie" . ?e_1 <ISNI> ?pv_1 . ?pv_1 <pred:value> "0000 0001 1444 8576" . ?e <OS_grid_reference> ?pv . ?pv <pred:value> "TQ315755" .  }
Program:
function: Find
inputs: David Bowie
function: FilterStr
dependencies: 0
inputs: ISNI
0000 0001 1444 8576
function: Relate
dependencies: 1
inputs: place of birth
forward
function: FilterConcept
dependencies: 2
inputs: area of London
function: QueryAttr
dependencies: 3
inputs: OS grid reference
function: VerifyStr
dependencies: 4
inputs: TQ315755