( ( recognition ( of ( emotion ( from ( facial expressions ) ) ) ) ) ; )
(ROOT (NP (NP (NN recognition)) (PP (IN of) (NP (NP (NN emotion)) (PP (IN from) (NP (JJ facial) (NNS expressions))))) (: ;)))
recognition of emotion from facial expressions;
(ROOT (S (NP (JJ Human) (JJ facial) (NNS expressions)) (VP (MD can) (VP (VB communicate) (NP (NNS emotions)))) (. .)))