Question: Of chemical elements with an oxidation state above zero, which possesses the lowest atomic number?
Choices: manganese
calcium
phosphorus
sodium
The Pink Panther
selenium
zinc
magnesium
Elton John
Spike Jonze
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 <atomic_number> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Program:
function: FindAll
function: FilterNum
dependencies: 0
inputs: oxidation state
0
>
function: FilterConcept
dependencies: 1
inputs: chemical element
function: SelectAmong
dependencies: 2
inputs: atomic number
smallest
Answer: sodium