Question: What is the official website of the land-grant university whose subreddit is iastate with 4797 subscribers?
Choices:
http://nebulas.sfwa.org/
http://www.inverness-scotland.com/
http://www.johnleguizamo.com/
http://www.mehcad-brooks.net/
http://www.verizon.com/
http://www.czech.cz/
http://www.gannett.com/
http://www.ten.com.au
http://www.berlinale.de/
https://www.iastate.edu
Answer: https://www.iastate.edu
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "land-grant university" . ?e <subreddit> ?pv_1 . ?pv_1 <pred:value> "iastate" . [ <pred:fact_h> ?e ; <pred:fact_r> <subreddit> ; <pred:fact_t> ?pv_1 ] <number_of_subscribers> ?qpv . ?qpv <pred:unit> "1" . ?qpv <pred:value> "4797"^^xsd:double . ?e <official_website> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: subreddit
iastate
function: QFilterNum
dependencies: 1
inputs: number of subscribers
4797
=
function: FilterConcept
dependencies: 2
inputs: land-grant university
function: QueryAttr
dependencies: 3
inputs: official website