I was on this earth you know, I've lived on this earth for some reason, I just don't know what it is yet.
( I ( ( was ( on ( ( this earth ) ( you ( know ( ( , ( ( I ( 've ( lived ( on ( ( this earth ) ( for ( some reason ) ) ) ) ) ) ) , ) ) ( I ( just ( ( do n't ) ( know ( what ( it ( is yet ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD was) (PP (IN on) (NP (NP (DT this) (NN earth)) (SBAR (S (NP (PRP you)) (VP (VBP know) (SBAR (S (PRN (, ,) (S (NP (PRP I)) (VP (VBP 've) (VP (VBN lived) (PP (IN on) (NP (NP (DT this) (NN earth)) (PP (IN for) (NP (DT some) (NN reason)))))))) (, ,)) (NP (PRP I)) (ADVP (RB just)) (VP (VBP do) (RB n't) (VP (VB know) (SBAR (WHNP (WP what)) (S (NP (PRP it)) (VP (VBZ is) (ADVP (RB yet))))))))))))))) (. .)))
I am fairly certain that I will discover the reason why I live on this earth. 
( I ( ( am ( fairly ( certain ( that ( I ( will ( ( discover ( the reason ) ) ( why ( I ( live ( on ( this earth ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP am) (ADJP (RB fairly) (JJ certain) (SBAR (IN that) (S (NP (PRP I)) (VP (MD will) (VP (VB discover) (NP (DT the) (NN reason)) (SBAR (WHADVP (WRB why)) (S (NP (PRP I)) (VP (VBP live) (PP (IN on) (NP (DT this) (NN earth)))))))))))) (. .)))