1) Increased federal enforcement . Before Hoover's death, the FBI did not aggressively investigate the Mafia.
( ( 1 -RRB- ) ( ( Increased ( ( ( federal ( enforcement . ) ) ( Before ( ( Hoover 's ) death ) ) ) ( , ( ( the FBI ) ( ( ( did not ) aggressively ) ( investigate ( the Mafia ) ) ) ) ) ) ) . ) )
(ROOT (S (LST (LS 1) (-RRB- -RRB-)) (VP (VB Increased) (SBAR (S (FRAG (NP (JJ federal) (NN enforcement) (. .)) (PP (IN Before) (NP (NP (NNP Hoover) (POS 's)) (NN death)))) (, ,) (NP (DT the) (NNP FBI)) (VP (VBD did) (RB not) (ADVP (RB aggressively)) (VP (VB investigate) (NP (DT the) (NNP Mafia))))))) (. .)))
The Mafia were not aggressively investigated before Hoover's death.
( ( The Mafia ) ( ( ( were not ) ( aggressively ( investigated ( before ( ( Hoover 's ) death ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Mafia)) (VP (VBD were) (RB not) (VP (ADVP (RB aggressively)) (VBN investigated) (PP (IN before) (NP (NP (NNP Hoover) (POS 's)) (NN death))))) (. .)))