( ( evolution ( of ( composition ( of ( ( atmosphere , ) ( evidence ( for ( ( ( ( ( past ( climate change ) ) , ) ( ice ages ) ) and ) ( their causal ) ) ) ) ) ) ) ) ) ( ( ( mechanisms ( -LRB- ( ( Nov. ( 1 8 ) ) -RRB- ) ) ) 5 ) . ) )
(ROOT (S (NP (NP (NN evolution)) (PP (IN of) (NP (NP (NN composition)) (PP (IN of) (NP (NP (NN atmosphere)) (, ,) (NP (NP (NN evidence)) (PP (IN for) (NP (NP (JJ past) (NN climate) (NN change)) (, ,) (NP (NN ice) (NNS ages)) (CC and) (NP (PRP$ their) (NN causal)))))))))) (VP (VBZ mechanisms) (PRN (-LRB- -LRB-) (NP (NNP Nov.) (QP (CD 1) (CD 8))) (-RRB- -RRB-)) (NP (CD 5))) (. .)))
evolution of composition of atmosphere, evidence for past climate change, ice ages and their causal mechanisms (Nov. 1 8) 5.
(ROOT (S (SBAR (WHADVP (WRB How)) (S (NP (NN ice) (NNS cores)) (VP (VBP are) (ADJP (JJ important) (PP (TO to) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (JJ geologic) (NN history))))))))) (VP (VBZ is) (ADVP (RBS best)) (VP (VBN described) (SBAR (IN as) (S (NP (PRP they)) (VP (VBP contain) (NP (NN evidence) (NN showing) (NNS changes)) (PP (IN in) (NP (NP (DT the) (JJ atmospheric) (NN composition)) (PP (IN over) (NP (NN time)))))))))) (. .)))