Question: Which is the unit of energy that is measured by physical quantity of energy and starts with the letter t?
Paraphrase: Which is the unit of energy that is measured by means of physical extent of energy and starts with the letter t?
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q2916980 . ?sbj wdt:P111 wd:Q11379 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 't')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: tonne of oil equivalent, tonne of oil equivalent, therm (US), therm (US), terawatt hour, terawatt hour, terajoule, terajoule, ton of TNT, ton of TNT