Her eyes flashed continually from one window to the other.
( ( Her eyes ) ( ( ( ( flashed continually ) ( from ( one window ) ) ) ( to ( the other ) ) ) . ) )
(ROOT (S (NP (PRP$ Her) (NNS eyes)) (VP (VBD flashed) (ADVP (RB continually)) (PP (IN from) (NP (CD one) (NN window))) (PP (TO to) (NP (DT the) (JJ other)))) (. .)))
She was looking intently at the one window in front of her.
( She ( ( was ( ( looking intently ) ( at ( ( the ( one window ) ) ( in ( front ( of her ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP She)) (VP (VBD was) (VP (VBG looking) (ADVP (RB intently)) (PP (IN at) (NP (NP (DT the) (CD one) (NN window)) (PP (IN in) (NP (NP (NN front)) (PP (IN of) (NP (PRP her))))))))) (. .)))