Question: Is peterweirmla the  Twitter username of Peter Weir (the one whose date of birth is 1968-11-21)?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Peter Weir" . ?e <date_of_birth> ?pv_1 . ?pv_1 <pred:date> "1968-11-21"^^xsd:date . ?e <Twitter_username> ?pv . ?pv <pred:value> "peterweirmla" .  }
Program:
function: Find
inputs: Peter Weir
function: FilterDate
dependencies: 0
inputs: date of birth
1968-11-21
=
function: QueryAttr
dependencies: 1
inputs: Twitter username
function: VerifyStr
dependencies: 2
inputs: peterweirmla