She was 96 just turning away when she heard a piercing whistle, and the faithful Albert came running from the building to join her.
( ( ( ( ( She ( ( was ( 96 just ) ) ( ( turning away ) ( when ( she ( heard ( a ( piercing whistle ) ) ) ) ) ) ) ) , ) and ) ( ( the ( faithful Albert ) ) ( came ( running ( from ( the ( building ( to ( join her ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP She)) (VP (VBD was) (ADVP (NP (CD 96)) (RB just)) (VP (VBG turning) (PRT (RP away)) (SBAR (WHADVP (WRB when)) (S (NP (PRP she)) (VP (VBD heard) (NP (DT a) (VBG piercing) (NN whistle)))))))) (, ,) (CC and) (S (NP (DT the) (JJ faithful) (NNP Albert)) (VP (VBD came) (S (VP (VBG running) (PP (IN from) (NP (DT the) (NN building) (S (VP (TO to) (VP (VB join) (NP (PRP her))))))))))) (. .)))
She was an old lady who was out for a walk when she heard a noise. 
( She ( ( was ( ( an ( old lady ) ) ( who ( ( ( was out ) ( for ( a walk ) ) ) ( when ( she ( heard ( a noise ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP She)) (VP (VBD was) (NP (NP (DT an) (JJ old) (NN lady)) (SBAR (WHNP (WP who)) (S (VP (VBD was) (ADVP (RB out)) (PP (IN for) (NP (DT a) (NN walk))) (SBAR (WHADVP (WRB when)) (S (NP (PRP she)) (VP (VBD heard) (NP (DT a) (NN noise)))))))))) (. .)))