sentence1_binary_parse: ( ( In 1993 ) ( , ( ( the team ) ( ( ( ( ( ( ( uncovered ( ( the bones ) ( of ( extinct creatures ) ) ) ) ( like ( woolly mammoth ) ) ) , ) ( along ( with ( human tools ) ) ) ) , ) ( from ( ( a ( ( ( 40,000 year ) old ) site ) ) ( in ( northern China ) ) ) ) ) . ) ) ) )
sentence1_parse: (ROOT (S (PP (IN In) (NP (CD 1993))) (, ,) (NP (DT the) (NN team)) (VP (VBD uncovered) (NP (NP (DT the) (NNS bones)) (PP (IN of) (NP (JJ extinct) (NNS creatures)))) (PP (IN like) (NP (JJ woolly) (NNS mammoth))) (, ,) (ADVP (IN along) (PP (IN with) (NP (JJ human) (NNS tools)))) (, ,) (PP (IN from) (NP (NP (DT a) (ADJP (NP (CD 40,000) (NN year)) (JJ old)) (NN site)) (PP (IN in) (NP (JJ northern) (NNP China)))))) (. .)))
sentence1: In 1993, the team uncovered the bones of extinct creatures like woolly mammoth, along with human tools, from a 40,000 year old site in northern China.
sentence2_parse: (ROOT (S (NP (JJ Woolly) (NNS mammoths)) (VP (VBD began) (S (VP (TO to) (VP (VB go) (NP (NP (ADJP (JJ extinct)) (NNS thousands)) (PP (IN of) (NP (NNS years)))) (ADVP (RB ago) (PP (IN because) (PP (IN of) (S (VP (VBG hunting) (PP (IN by) (NP (NNS humans)))))))))))) (. .)))
sentence2: Woolly mammoths began to go extinct thousands of years ago because of hunting by humans.