( ( Sea ( Otters ( Sea Otters ) ) ) ( ( are ( ( playful animals ) ( that ( spend ( ( ( almost all ) ( their time ) ) ( in ( the sea ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Sea) (NNP Otters) (NNP Sea) (NNP Otters)) (VP (VBP are) (NP (NP (JJ playful) (NNS animals)) (SBAR (WHNP (WDT that)) (S (VP (VBP spend) (NP (NP (QP (RB almost) (DT all)) (PRP$ their) (NN time)) (PP (IN in) (NP (DT the) (NN sea))))))))) (. .)))
Sea Otters Sea Otters are playful animals that spend almost all their time in the sea.
(ROOT (S (NP (NNP Sea) (NNS otters)) (VP (VBP are) (VP (VBN known) (PP (IN for) (S (VP (VBG being) (ADJP (JJ playful) (CC and) (JJ frisky))))))) (. .)))