( ( Contrary ( to ( previous observations ) ) ) ( , ( ( the drops ) ( ( ( ( elongate ( in ( horizontal direction ) ) ) and ) ( distort ( into ( ( ( ( the shape ) ( of ( ( a ( concave-convex lens ) ) ( with ( a ( convex bottom ) ) ) ) ) ) and ) ( ( a ( sharp-edged rim ) ) ( facing upward ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (JJ Contrary) (PP (TO to) (NP (JJ previous) (NNS observations)))) (, ,) (NP (DT the) (NNS drops)) (VP (VP (VB elongate) (PP (IN in) (NP (JJ horizontal) (NN direction)))) (CC and) (VP (VB distort) (PP (IN into) (NP (NP (NP (DT the) (NN shape)) (PP (IN of) (NP (NP (DT a) (JJ concave-convex) (NN lens)) (PP (IN with) (NP (DT a) (NN convex) (NN bottom)))))) (CC and) (NP (NP (DT a) (JJ sharp-edged) (NN rim)) (VP (VBG facing) (ADVP (RB upward)))))))) (. .)))
Contrary to previous observations, the drops elongate in horizontal direction and distort into the shape of a concave-convex lens with a convex bottom and a sharp-edged rim facing upward.
(ROOT (S (NP (NP (DT The) (NN lens)) (PP (IN of) (NP (DT the) (NN eye)))) (VP (VBZ is) (S (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN convex)) (VP (VB shape)))) (. .)))