Question: How many types of astronomical objects are star models or include a nebula?
Choices: 0
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "astronomical object type" .  { ?e_1 <model_item> ?e . ?e_1 <pred:name> "star" .  } UNION { ?e_1 <part_of> ?e . ?e_1 <pred:name> "nebula" .  } }
Program:
function: Find
inputs: star
function: Relate
dependencies: 0
inputs: model item
forward
function: FilterConcept
dependencies: 1
inputs: astronomical object type
function: Find
inputs: nebula
function: Relate
dependencies: 3
inputs: part of
forward
function: FilterConcept
dependencies: 4
inputs: astronomical object type
function: Or
dependencies: 2
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function: Count
dependencies: 6
Answer: 2