Question: What chemical element with an oxidation state less than 0 has the smallest mass?
Choices:
phosphorus
Salzburg
sodium
zinc
Kaizer Chiefs F.C.
Alan J. Pakula
selenium
magnesium
manganese
calcium
Program:
function: FindAll
function: FilterNum
dependencies: 0
inputs: oxidation state
0
<
function: FilterConcept
dependencies: 1
inputs: chemical element
function: SelectAmong
dependencies: 2
inputs: mass
smallest
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "chemical element" . ?e <oxidation_state> ?pv_1 . ?pv_1 <pred:unit> "1" . ?pv_1 <pred:value> ?v_1 . FILTER ( ?v_1 < "0"^^xsd:double ) . ?e <mass> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Answer: sodium