Witness the following conclusion by a researcher who compared American with Japanese infant rearing   An American mother-infant relationship consists of two individuals . . . a Japanese mother-infant relationship consists of only one individual, i.e., mother and infant are not divided. 
( ( ( Witness ( the ( following conclusion ) ) ) ( by ( ( a researcher ) ( who ( ( ( compared American ) ( with ( Japanese infant ) ) ) ( rearing ( ( ( ( ( ( ( ( An ( American ( mother-infant relationship ) ) ) ( consists ( of ( two individuals ) ) ) ) ... ) ( ( a ( Japanese ( mother-infant relationship ) ) ) ( consists ( of ( only ( one individual ) ) ) ) ) ) , ) i.e. ) , ) ( ( ( mother and ) infant ) ( ( are not ) divided ) ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Witness) (NP (DT the) (VBG following) (NN conclusion)) (PP (IN by) (NP (NP (DT a) (NN researcher)) (SBAR (WHNP (WP who)) (S (VP (VBD compared) (NP (NNP American)) (PP (IN with) (NP (JJ Japanese) (NN infant))) (S (VP (VBG rearing) (S (S (NP (DT An) (JJ American) (JJ mother-infant) (NN relationship)) (VP (VBZ consists) (PP (IN of) (NP (CD two) (NNS individuals))))) (: ...) (S (NP (DT a) (JJ Japanese) (JJ mother-infant) (NN relationship)) (VP (VBZ consists) (PP (IN of) (NP (RB only) (CD one) (NN individual))))) (, ,) (INTJ (UH i.e.)) (, ,) (S (NP (NN mother) (CC and) (NN infant)) (VP (VBP are) (RB not) (ADJP (VBN divided))))))))))))) (. .)))
Witness the following conclusion by a researcher who compared Japanese teens with American adults.
( ( ( Witness ( the ( following conclusion ) ) ) ( by ( ( a researcher ) ( who ( ( compared ( Japanese teens ) ) ( with ( American adults ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Witness) (NP (DT the) (VBG following) (NN conclusion)) (PP (IN by) (NP (NP (DT a) (NN researcher)) (SBAR (WHNP (WP who)) (S (VP (VBD compared) (NP (JJ Japanese) (NNS teens)) (PP (IN with) (NP (JJ American) (NNS adults))))))))) (. .)))