I guess I lay there unconscious awhile.
( I ( ( guess ( I ( lay ( there ( unconscious awhile ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP guess) (S (NP (PRP I)) (VP (VB lay) (S (NP (EX there)) (ADJP (JJ unconscious)) (ADVP (RB awhile)))))) (. .)))
I laid on the ground.
( I ( ( laid ( on ( the ground ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD laid) (PP (IN on) (NP (DT the) (NN ground)))) (. .)))