Mary-ga [John-ga [[zibun no gakusei-ga zyuuyoona kasetu-o teiansi-ta] to] zimansitei-ta] no [pro] no kekkan-o sitekisi-ta .
M-NOM J-NOM self ’s student-NOM important hypothesis-ACC propose-PAST COMP boast-PAST no  no defect-ACC point.out-PAST
John had boasted [that his student proposed an important hypothesis]], and Mary pointed out the defect in it.