( ( ( ( The baby ) and ) ( the placenta ) ) ( ( are ( connected ( by ( the ( umbilical cord ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN baby)) (CC and) (NP (DT the) (NN placenta))) (VP (VBP are) (VP (VBN connected) (PP (IN by) (NP (DT the) (JJ umbilical) (NN cord))))) (. .)))
The baby and the placenta are connected by the umbilical cord.
(ROOT (S (NP (NP (DT A) (NN connection)) (PP (TO to) (NP (DT the) (NN placenta)))) (VP (VBZ is) (VP (VBN required) (PP (IN for) (NP (DT a) (JJ newborn) (NN baby))) (S (VP (TO to) (VP (VB begin) (NP (NN breathing))))))) (. .)))