In one study, Lonigan and Whitehurst compared shared reading with teachers at preschool, shared reading with parents at home, and a combined condition.
( ( In ( one study ) ) ( , ( ( ( Lonigan and ) Whitehurst ) ( ( ( ( compared ( shared reading ) ) ( with ( teachers ( at ( preschool ( , ( shared reading ) ) ) ) ) ) ) ( with ( ( ( ( parents ( at home ) ) , ) and ) ( a ( combined condition ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (CD one) (NN study))) (, ,) (NP (NNP Lonigan) (CC and) (NNP Whitehurst)) (VP (VBD compared) (NP (VBN shared) (NN reading)) (PP (IN with) (NP (NP (NNS teachers)) (PP (IN at) (NP (JJ preschool) (, ,) (VBN shared) (NN reading))))) (PP (IN with) (NP (NP (NP (NNS parents)) (PP (IN at) (NP (NN home)))) (, ,) (CC and) (NP (DT a) (VBN combined) (NN condition))))) (. .)))
The study took place in the United States during the 1970s.
( ( The study ) ( ( ( ( took place ) ( in ( the ( United States ) ) ) ) ( during ( the 1970s ) ) ) . ) )
(ROOT (S (NP (DT The) (NN study)) (VP (VBD took) (NP (NN place)) (PP (IN in) (NP (DT the) (NNP United) (NNPS States))) (PP (IN during) (NP (DT the) (NNS 1970s)))) (. .)))