Question: When did Plymouth (which is headed by a mayor) reach a population of 267918?
Choices: 1991-01-01
2012-07-01
2018-08-15
1897
2011-11-23
1950-10-01
1472
1964-01-01
2011
2016
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Plymouth" . ?e <office_held_by_head_of_government> ?e_1 . ?e_1 <pred:name> "mayor" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "267918"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: mayor
function: Relate
dependencies: 0
inputs: office held by head of government
backward
function: Find
inputs: Plymouth
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: population
267918
point in time
Answer: 2016