Question: What is the official website for Darwin (the one whose title is Darwin)?
Choices: http://www.darwindoc.com
http://www.roosevelt.edu
https://www.ebay.com
http://gsd.harvard.edu/
http://www.keywestcity.com
https://www.efl.com/clubs-and-competitions/sky-bet-championship/
http://www.sthelens.gov.uk/
http://www.helloproject.com/morningmusume/
http://www.ronstadt-linda.com
http://www.everettwa.org/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Darwin" . ?e <title> ?pv_1 . ?pv_1 <pred:value> "Darwin" . ?e <official_website> ?pv .  }
Program:
function: Find
inputs: Darwin
function: FilterStr
dependencies: 0
inputs: title
Darwin
function: QueryAttr
dependencies: 1
inputs: official website
Answer: http://www.darwindoc.com