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))))))))))))))))) (. .)))
I clearly indicated in my letter that we reserved a room in the Union Building.
( I ( clearly ( ( ( indicated ( in ( my letter ) ) ) ( that ( we ( ( reserved ( a room ) ) ( in ( the ( Union Building ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (PRP I)) (ADVP (RB clearly)) (VP (VBD indicated) (PP (IN in) (NP (PRP$ my) (NN letter))) (SBAR (IN that) (S (NP (PRP we)) (VP (VBD reserved) (NP (DT a) (NN room)) (PP (IN in) (NP (DT the) (NNP Union) (NNP Building))))))) (. .)))