Question: WHAT ARE THEORY WHICH START WITH THE LETTER T.
Paraphrase: WHAT ARE Hypothesis WHICH Begin WITH THE LETTER T.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q17737 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 't')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Traditionalism, Traditionalism, Theory of Constraints, Theory of Constraints, Taylor–Culick flow, Taylor–Culick flow, Thomas Aquinas' theory on Christ's sitting at the right hand of the Father, Thomas Aquinas' theory on Christ's sitting at the right hand of the Father, theory of algorithms, theory of algorithms, Two-Mona Lisa theory, Two-Mona Lisa theory, theory of language, theory of language, Two-factor theory, Two-factor theory, Two-state theory, Two-state theory, TRIZ, TRIZ, Theory-theory, Theory-theory, Triarchy, Triarchy, Terrie Moffitt's developmental theory of crime, Terrie Moffitt's developmental theory of crime, Tai Chi theory, Tai Chi theory, Taylor dispersion, Taylor dispersion, Theory of Phoenician discovery of the Americas, Theory of Phoenician discovery of the Americas, Three stratum theory, Three stratum theory, Taylor microscale, Taylor microscale, Tetragrammaton in the New Testament, Tetragrammaton in the New Testament, Teora, Teora, transformative Learning, transformative Learning, Taylor–Green vortex, Taylor–Green vortex, Triune brain, Triune brain, telegony, telegony, theory of criminal justice, theory of criminal justice