This can lead to a condition called imprinting, where the baby grows up thinking it is a people instead of a duck.
( This ( ( can ( lead ( to ( ( a condition ) ( ( ( called imprinting ) , ) ( where ( ( the baby ) ( ( grows up ) ( thinking ( it ( is ( ( a people ) ( instead ( of ( a duck ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (MD can) (VP (VB lead) (PP (TO to) (NP (NP (DT a) (NN condition)) (VP (VBN called) (S (VP (VBG imprinting))) (, ,) (SBAR (WHADVP (WRB where)) (S (NP (DT the) (NN baby)) (VP (VBZ grows) (PRT (RP up)) (S (VP (VBG thinking) (SBAR (S (NP (PRP it)) (VP (VBZ is) (NP (NP (DT a) (NNS people)) (PP (RB instead) (IN of) (NP (DT a) (NN duck))))))))))))))))) (. .)))
If the duck spends too much time with people it may lead to imprinting.
( ( If ( ( the duck ) ( ( spends ( ( too much ) time ) ) ( with people ) ) ) ) ( it ( ( may ( lead ( to imprinting ) ) ) . ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT the) (NN duck)) (VP (VBZ spends) (NP (ADJP (RB too) (JJ much)) (NN time)) (PP (IN with) (NP (NNS people)))))) (NP (PRP it)) (VP (MD may) (VP (VB lead) (S (VP (TO to) (VP (VB imprinting)))))) (. .)))