His voice was even and calm, not a hint of rage.
( ( ( ( ( His voice ) ( was even ) ) and ) ( ( calm , ) ( ( not ( a hint ) ) ( of rage ) ) ) ) . )
(ROOT (S (S (NP (PRP$ His) (NN voice)) (VP (VBD was) (ADVP (RB even)))) (CC and) (S (NP (NN calm)) (, ,) (NP (NP (RB not) (DT a) (NN hint)) (PP (IN of) (NP (NN rage))))) (. .)))
He was not at all concerned about what was happening.
( He ( ( ( was not ) ( ( at all ) ( concerned ( about ( what ( was happening ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD was) (RB not) (ADJP (ADVP (IN at) (DT all)) (JJ concerned) (PP (IN about) (SBAR (WHNP (WP what)) (S (VP (VBD was) (VP (VBG happening)))))))) (. .)))