( ( Eyes ( will ( be ( fixed open ) ) ) ) ( , ( pupils ( dilated . ) ) ) )
(ROOT (S (S (NP (NNS Eyes)) (VP (MD will) (VP (VB be) (VP (VBN fixed) (S (ADJP (JJ open))))))) (, ,) (NP (NNS pupils)) (VP (VBD dilated)) (. .)))
Eyes will be fixed open, pupils dilated.
(ROOT (S (NP (DT The) (NN pupil)) (VP (VBZ is) (NP (NP (DT the) (NN opening)) (PP (IN in) (NP (NP (DT the) (NN front)) (PP (IN of) (NP (DT the) (NN eye))))))) (. .)))