Question: How many episodes were there in the television series with the short name of DS9?
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "television series episode" . ?e <part_of_the_series> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "television series" . ?e_1 <short_name> ?pv . ?pv <pred:value> "DS9" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: short name
DS9
function: FilterConcept
dependencies: 1
inputs: television series
function: Relate
dependencies: 2
inputs: part of the series
backward
function: FilterConcept
dependencies: 3
inputs: television series episode
function: Count
dependencies: 4
Answer: 3