 Afterwards, the Bishop walked among the crowds, eating their picnic lunches. 
( Afterwards ( , ( ( the Bishop ) ( ( ( ( walked ( among ( the crowds ) ) ) , ) ( eating ( their ( picnic lunches ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Afterwards)) (, ,) (NP (DT the) (NNP Bishop)) (VP (VBD walked) (PP (IN among) (NP (DT the) (NNS crowds))) (, ,) (S (VP (VBG eating) (NP (PRP$ their) (NN picnic) (NNS lunches))))) (. .)))
The Bishop sat in his room.
( ( The Bishop ) ( ( sat ( in ( his room ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Bishop)) (VP (VBD sat) (PP (IN in) (NP (PRP$ his) (NN room)))) (. .)))