He was found by his son on the floor next to his bed, who called EMS.
 Patient has had a TIA
(ROOT (S (NP (PRP He)) (VP (VBD was) (VP (VBN found) (PP (IN by) (NP (NP (PRP$ his) (NN son)) (PP (IN on) (NP (DT the) (NN floor))) (ADVP (JJ next) (PP (TO to) (NP (NP (PRP$ his) (NN bed)) (, ,) (SBAR (WHNP (WP who)) (S (VP (VBD called) (NP (NNP EMS)))))))))))) (. .)))
(ROOT (S (NP (NN Patient)) (VP (VBZ has) (VP (VBN had) (NP (DT a) (NN TIA))))))
( He ( ( was ( found ( by ( ( ( his son ) ( on ( the floor ) ) ) ( next ( to ( ( ( his bed ) , ) ( who ( called EMS ) ) ) ) ) ) ) ) ) . ) )
( Patient ( has ( had ( a TIA ) ) ) )