You wrote this out all by yourself.
( You ( ( ( ( wrote this ) ( out all ) ) ( by yourself ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (VBD wrote) (NP (DT this)) (ADVP (IN out) (DT all)) (PP (IN by) (NP (PRP yourself)))) (. .)))
You composed this totally on your own.
( You ( ( composed ( this ( totally ( on ( your own ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (VBN composed) (S (NP (DT this)) (ADJP (RB totally) (PP (IN on) (NP (PRP$ your) (JJ own)))))) (. .)))