sentence1_binary_parse: ( ( How ( ( Your Baby ) ( Is ( ( ( Growing and ) Developing ) ( ( Your ( Baby 's ) ) ( Nervous System ) ) ) ) ) ) ( ( ( The beginning ) ( of ( ( ( the ( baby 's ) ) ( nervous system ) ) ( -LRB- ( ( ( ( brain ( and ( other structures ) ) ) , ) ( such ( as ( the ( spinal cord ) ) ) ) ) -RRB- ) ) ) ) ) ( ( is ( ( ( seen ( as early ) ) ( as ( week 4 ) ) ) ( as ( ( the ( neural plate ) ) ( begins ( to develop ) ) ) ) ) ) . ) ) )
sentence1_parse: (ROOT (S (SBAR (WHADVP (WRB How)) (S (NP (PRP$ Your) (NNP Baby)) (VP (VBZ Is) (S (VP (VBG Growing) (CC and) (VBG Developing) (NP (NP (NNP Your) (NNP Baby) (POS 's)) (JJ Nervous) (NN System))))))) (NP (NP (DT The) (NN beginning)) (PP (IN of) (NP (NP (NP (DT the) (NN baby) (POS 's)) (JJ nervous) (NN system)) (PRN (-LRB- -LRB-) (NP (NP (NN brain) (CC and) (JJ other) (NNS structures)) (, ,) (PP (JJ such) (IN as) (NP (DT the) (JJ spinal) (NN cord)))) (-RRB- -RRB-))))) (VP (VBZ is) (VP (VBN seen) (ADVP (RB as) (RB early)) (PP (IN as) (NP (NN week) (CD 4))) (SBAR (IN as) (S (NP (DT the) (JJ neural) (NN plate)) (VP (VBZ begins) (S (VP (TO to) (VP (VB develop))))))))) (. .)))
sentence1: How Your Baby Is Growing and Developing Your Baby's Nervous System The beginning of  the baby's nervous system (brain and other structures, such as the spinal cord) is seen as early as week 4 as the neural plate begins to develop.
sentence2_parse: (ROOT (S (NP (NP (DT The) (NN development)) (PP (IN of) (NP (NP (DT the) (JJ respiratory) (NN system)) (PP (IN in) (NP (DT the) (NN fetus)))))) (VP (VBZ begins) (PP (IN at) (NP (QP (RB about) (CD 4)) (NNS weeks)))) (. .)))
sentence2: The development of the respiratory system in the fetus begins at about 4 weeks.