IQ boosting was achieved through a fetal replacement process where the embryos from two carefully selected mothers were to be switched from one to another.
( ( IQ boosting ) ( ( was ( achieved ( through ( ( a ( fetal ( replacement process ) ) ) ( where ( ( ( the embryos ) ( from two ) ) ( carefully ( selected ( mothers ( were ( to ( be ( ( switched ( from one ) ) ( to another ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP IQ) (NNP boosting)) (VP (VBD was) (VP (VBN achieved) (PP (IN through) (NP (NP (DT a) (JJ fetal) (NN replacement) (NN process)) (SBAR (WHADVP (WRB where)) (S (NP (NP (DT the) (NNS embryos)) (PP (IN from) (NP (CD two)))) (ADVP (RB carefully)) (VP (VBD selected) (SBAR (S (NP (NNS mothers)) (VP (VBD were) (S (VP (TO to) (VP (VB be) (VP (VBN switched) (PP (IN from) (NP (CD one))) (PP (TO to) (NP (DT another))))))))))))))))) (. .)))
IQ boosting can be done through fetal replacement in the first trimester.
( ( IQ boosting ) ( ( can ( be ( done ( through ( ( fetal replacement ) ( in ( the ( first trimester ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP IQ) (NNP boosting)) (VP (MD can) (VP (VB be) (VP (VBN done) (PP (IN through) (NP (NP (JJ fetal) (NN replacement)) (PP (IN in) (NP (DT the) (JJ first) (NN trimester)))))))) (. .)))