Question: Which OS grid reference designates Stepney?
Choices: SK245225
TQ182693
NY395555
SO515405
SD475615
NZ495204
TQ355814
SJ805985
TQ883856
TA279087
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Stepney" . ?e <OS_grid_reference> ?pv .  }
Program:
function: Find
inputs: Stepney
function: QueryAttr
dependencies: 0
inputs: OS grid reference
Answer: TQ355814