Question: What is the median lethal dose of acetaldehyde given by subcutaneous injection?
Paraphrase: When administered by subcutaneous injection, what is the median value for lethal dosage of acetaldehyde?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q61457 p:P2240 ?s . ?s ps:P2240 ?obj . ?s pq:P636 wd:Q2035485 }