S + O2 -> SO2 — combustione zolfoPREFIX chem: <https://ontology.siletto.it/chem-pipeline#>
SELECT ?pipeline ?role WHERE {
chem:sulfur chem:playsRole ?ra .
?ra chem:inPipeline ?pipeline ; chem:role ?role .
}
Dereferenziabile: chem:sulfur
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