Question: What is the Stack Exchange tag of the time zone whose official website is https://greenwichmeantime.com/?
Choices: https://math.stackexchange.com/tags/abstract-algebra
https://languagelearning.stackexchange.com/tags/japanese
https://travel.stackexchange.com/tags/china
https://stackoverflow.com/tags/artificial-intelligence
https://android.stackexchange.com/tags/windows
https://stackoverflow.com/tags/mesa
https://stackoverflow.com/tags/gmt
https://stackoverflow.com/tags/hebrew
https://anime.stackexchange.com/tags/japanese-language
https://stackoverflow.com/tags/linux
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "time zone" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "https://greenwichmeantime.com/" . ?e <Stack_Exchange_tag> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
https://greenwichmeantime.com/
function: FilterConcept
dependencies: 1
inputs: time zone
function: QueryAttr
dependencies: 2
inputs: Stack Exchange tag
Answer: https://stackoverflow.com/tags/gmt