Question: Is the official website for the industry that derives a Unix-like operating system http://opengroup.org/unix ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "industry" . ?e_1 <based_on> ?e . ?e_1 <pred:name> "Unix-like operating system" .  ?e <official_website> ?pv . ?pv <pred:value> "http://opengroup.org/unix" .  }
Program:
function: Find
inputs: Unix-like operating system
function: Relate
dependencies: 0
inputs: based on
forward
function: FilterConcept
dependencies: 1
inputs: industry
function: QueryAttr
dependencies: 2
inputs: official website
function: VerifyStr
dependencies: 3
inputs: http://opengroup.org/unix
Answer: yes