You may recall from my earlier letter regarding our 50th reunion that a room in the Union Building has been reserved for our use following the banquet on Friday.
( You ( ( may ( recall ( from ( ( my ( earlier letter ) ) ( ( regarding ( our ( 50th reunion ) ) ) ( that ( ( ( a room ) ( in ( the ( Union Building ) ) ) ) ( has ( been ( reserved ( for ( ( our use ) ( following ( ( the banquet ) ( on Friday ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (MD may) (VP (VB recall) (PP (IN from) (NP (NP (PRP$ my) (JJR earlier) (NN letter)) (VP (VBG regarding) (NP (PRP$ our) (JJ 50th) (NN reunion)) (SBAR (IN that) (S (NP (NP (DT a) (NN room)) (PP (IN in) (NP (DT the) (NNP Union) (NNP Building)))) (VP (VBZ has) (VP (VBN been) (VP (VBN reserved) (PP (IN for) (NP (NP (PRP$ our) (NN use)) (PP (VBG following) (NP (NP (DT the) (NN banquet)) (PP (IN on) (NP (NNP Friday))))))))))))))))) (. .)))
You may remember from my letter that a room has been reserved for our use.
( You ( ( may ( ( remember ( from ( my letter ) ) ) ( that ( ( a room ) ( has ( been ( reserved ( for ( our use ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (MD may) (VP (VB remember) (PP (IN from) (NP (PRP$ my) (NN letter))) (SBAR (IN that) (S (NP (DT a) (NN room)) (VP (VBZ has) (VP (VBN been) (VP (VBN reserved) (PP (IN for) (NP (PRP$ our) (NN use)))))))))) (. .)))