Question: What is the OS grid reference of the London area that has a Dewey Decimal Classification of 2--42134?
Choices: TA040880
TQ1874
ST228250
TQ275775
NS325395
TL055495
NZ495204
TQ335655
TR218361
NS887801
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "area of London" . ?e <Dewey_Decimal_Classification> ?pv_1 . ?pv_1 <pred:value> "2--42134" . ?e <OS_grid_reference> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Dewey Decimal Classification
2--42134
function: FilterConcept
dependencies: 1
inputs: area of London
function: QueryAttr
dependencies: 2
inputs: OS grid reference
Answer: TQ275775