Well, because it was really interesting stuff.
( Well ( , ( ( because ( it ( was ( really interesting ) ) ) ) ( stuff . ) ) ) )
(ROOT (S (ADVP (RB Well)) (, ,) (SBAR (IN because) (S (NP (PRP it)) (VP (VBD was) (ADJP (RB really) (JJ interesting))))) (VP (VBP stuff)) (. .)))
That stuff interested me a lot.
( ( That stuff ) ( ( ( interested me ) ( a lot ) ) . ) )
(ROOT (S (NP (DT That) (NN stuff)) (VP (JJ interested) (NP (PRP me)) (NP (DT a) (NN lot))) (. .)))