( And ( ( unlike ( other primates ) ) ( , ( orangutans ( ( build nests ) . ) ) ) ) )
(ROOT (S (CC And) (PP (IN unlike) (NP (JJ other) (NNS primates))) (, ,) (NP (NNS orangutans)) (VP (VBP build) (NP (NNS nests))) (. .)))
And unlike other primates, orangutans build nests.
(ROOT (S (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN orangutan)) (ADVP (RB generally)) (VP (VBZ lives) (ADVP (RB alone))) (. .)))