Further research is needed and families still need help.
( ( ( ( ( Further research ) ( is needed ) ) and ) ( families ( still ( need help ) ) ) ) . )
(ROOT (S (S (NP (JJ Further) (NN research)) (VP (VBZ is) (VP (VBN needed)))) (CC and) (S (NP (NNS families)) (ADVP (RB still)) (VP (MD need) (VP (VB help)))) (. .)))
Further research must be conducted.
( ( Further research ) ( ( must ( be conducted ) ) . ) )
(ROOT (S (NP (JJ Further) (NN research)) (VP (MD must) (VP (VB be) (VP (VBN conducted)))) (. .)))