( ( Type Ia ) ( supernovae ( ( are ( discovered ( in ( ( all ( three types ) ) ( of galaxies ) ) ) ) ) . ) ) )
(ROOT (S (NP (NNP Type) (NNP Ia)) (ADVP (RB supernovae)) (VP (VBP are) (VP (VBN discovered) (PP (IN in) (NP (NP (DT all) (CD three) (NNS types)) (PP (IN of) (NP (NNS galaxies))))))) (. .)))
Type Ia supernovae are discovered in all three types of galaxies.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD three) (NNS types)) (PP (IN of) (NP (NNS galaxies))))) (. .)))