Question: Is royorbison the Twitter username of a band that received Grammy Lifetime Achievement Award on 1st January 2013 ?
Choices: yes
no
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SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "band" . ?e <award_received> ?e_1 . ?e_1 <pred:name> "Grammy Lifetime Achievement Award" .  [ <pred:fact_h> ?e ; <pred:fact_r> <award_received> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:date> "2013-01-01"^^xsd:date . ?e <Twitter_username> ?pv . ?pv <pred:value> "royorbison" .  }
Program:
function: Find
inputs: Grammy Lifetime Achievement Award
function: Relate
dependencies: 0
inputs: award received
backward
function: QFilterDate
dependencies: 1
inputs: point in time
2013-01-01
=
function: FilterConcept
dependencies: 2
inputs: band
function: QueryAttr
dependencies: 3
inputs: Twitter username
function: VerifyStr
dependencies: 4
inputs: royorbison
Answer: no