Question: How many Summer Olympic Games  were in a sovereign state that is headed by President of the United States?
Choices:
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Answer: 4
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "Summer Olympic Games" . ?e <country> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "sovereign state" . ?e_1 <office_held_by_head_of_government> ?e_2 . ?e_2 <pred:name> "President of the United States" .   }
Program:
function: Find
inputs: President of the United States
function: Relate
dependencies: 0
inputs: office held by head of government
backward
function: FilterConcept
dependencies: 1
inputs: sovereign state
function: Relate
dependencies: 2
inputs: country
backward
function: FilterConcept
dependencies: 3
inputs: Summer Olympic Games
function: Count
dependencies: 4