Question: Is info@louvre.fr the email address for the museum that is the location of Leonardo da Vinci's notable work Mona Lisa since 1797?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "museum" . ?e_1 <location> ?e . ?e_1 <pred:name> "Mona Lisa" . ?e_2 <notable_work> ?e_1 . ?e_2 <pred:name> "Leonardo da Vinci" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <location> ; <pred:fact_t> ?e ] <start_time> ?qpv . ?qpv <pred:year> 1797 . ?e <e-mail_address> ?pv . ?pv <pred:value> "mailto:info@louvre.fr" .  }
Program:
function: Find
inputs: Leonardo da Vinci
function: Relate
dependencies: 0
inputs: notable work
forward
function: Find
inputs: Mona Lisa
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: location
forward
function: QFilterYear
dependencies: 4
inputs: start time
1797
=
function: FilterConcept
dependencies: 5
inputs: museum
function: QueryAttr
dependencies: 6
inputs: e-mail address
function: VerifyStr
dependencies: 7
inputs: mailto:info@louvre.fr
Answer: yes