Question: Is the written work with OSM Key:ref:nrhp represented online at the official site www.nps.gov/nr ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "written work" . ?e <OSM_tag_or_key> ?pv_1 . ?pv_1 <pred:value> "Key:ref:nrhp" . ?e <official_website> ?pv . ?pv <pred:value> "http://www.nps.gov/nr/" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: OSM tag or key
Key:ref:nrhp
function: FilterConcept
dependencies: 1
inputs: written work
function: QueryAttr
dependencies: 2
inputs: official website
function: VerifyStr
dependencies: 3
inputs: http://www.nps.gov/nr/
Answer: yes