( ( Although ( ( ( most species ) ( of primates ) ) ( live ( in ( social groups ) ) ) ) ) ( , ( there ( ( are ( ( a ( few primates ) ) ( that ( lead ( ( solitary lives ) ( including ( ( ( ( orangutans , ) ( some lemurs ) ) and ) ( a ( few galagos ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Although) (S (NP (NP (JJS most) (NNS species)) (PP (IN of) (NP (NNS primates)))) (VP (VBP live) (PP (IN in) (NP (JJ social) (NNS groups)))))) (, ,) (NP (EX there)) (VP (VBP are) (NP (NP (DT a) (JJ few) (NNS primates)) (SBAR (WHNP (WDT that)) (S (VP (VBP lead) (NP (NP (JJ solitary) (NNS lives)) (PP (VBG including) (NP (NP (NNS orangutans)) (, ,) (NP (DT some) (NNP lemurs)) (CC and) (NP (DT a) (JJ few) (NNS galagos)))))))))) (. .)))
Although most species of primates live in social groups, there are a few primates that lead solitary lives including orangutans, some lemurs and a few galagos.
(ROOT (S (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN orangutan)) (ADVP (RB generally)) (VP (VBZ lives) (ADVP (RB alone))) (. .)))