( Today ( , ( ( ( some ( 1,200 species ) ) ( of birds ) ) ( ( are ( ( threatened ( with extinction ) ) ( by ( human actions ) ) ) ) . ) ) ) )
(ROOT (S (NP (NN Today)) (, ,) (NP (NP (DT some) (CD 1,200) (NNS species)) (PP (IN of) (NP (NNS birds)))) (VP (VBP are) (VP (VBN threatened) (PP (IN with) (NP (NN extinction))) (PP (IN by) (NP (JJ human) (NNS actions))))) (. .)))
Today, some 1,200 species of birds are threatened with extinction by human actions.
(ROOT (S (PP (IN Around) (NP (CD 1200))) (NP (NP (NNS species)) (PP (IN of) (NP (NNS birds)))) (VP (VBP are) (ADVP (ADVP (RB currently)) (PP (IN at) (NP (NP (NN risk)) (PP (IN of) (NP (NN extinction)))))) (ADJP (JJ due) (PP (TO to) (NP (JJ human) (NN activity))))) (. .)))