I'm sending this follow-up letter to let you know that your support is greatly needed and appreciated by everyone involved with graduate Endodontics at IU.
( I ( ( 'm ( ( sending ( this ( follow-up letter ) ) ) ( to ( let ( you ( know ( that ( ( your support ) ( ( is greatly ) ( ( ( needed and ) appreciated ) ( by ( everyone ( ( involved ( with ( graduate Endodontics ) ) ) ( at IU ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP 'm) (VP (VBG sending) (NP (DT this) (NN follow-up) (NN letter)) (S (VP (TO to) (VP (VB let) (S (NP (PRP you)) (VP (VB know) (SBAR (IN that) (S (NP (PRP$ your) (NN support)) (VP (VBZ is) (ADVP (RB greatly)) (VP (VBN needed) (CC and) (VBN appreciated) (PP (IN by) (NP (NP (NN everyone)) (VP (VBN involved) (PP (IN with) (NP (JJ graduate) (NNS Endodontics))) (PP (IN at) (NP (NNP IU))))))))))))))))) (. .)))
I have sent you another letter to let you know we need your help and we would be appreciative of it.
( I ( ( have ( ( sent you ) ( another ( letter ( to ( let ( ( ( you ( know ( we ( need ( your help ) ) ) ) ) and ) ( we ( would ( be ( appreciative ( of it ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP have) (VP (VBN sent) (NP (PRP you)) (NP (DT another) (NN letter) (S (VP (TO to) (VP (VB let) (S (S (NP (PRP you)) (VP (VBP know) (SBAR (S (NP (PRP we)) (VP (VBP need) (NP (PRP$ your) (NN help))))))) (CC and) (S (NP (PRP we)) (VP (MD would) (VP (VB be) (NP (NP (NN appreciative)) (PP (IN of) (NP (PRP it)))))))))))))) (. .)))