Question: How many chemical elements were discovered in the United Kingdom or whose oxidation state is less than 0?
Choices: 2
3
4
5
6
7
8
9
10
11
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "chemical element" .  { ?e <location_of_discovery> ?e_1 . ?e_1 <pred:name> "United Kingdom" .  } UNION { ?e <oxidation_state> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> ?v . FILTER ( ?v < "0"^^xsd:double ) .  } }
Program:
function: Find
inputs: United Kingdom
function: Relate
dependencies: 0
inputs: location of discovery
backward
function: FilterConcept
dependencies: 1
inputs: chemical element
function: FindAll
function: FilterNum
dependencies: 3
inputs: oxidation state
0
<
function: FilterConcept
dependencies: 4
inputs: chemical element
function: Or
dependencies: 2
5
function: Count
dependencies: 6
Answer: 5