i did go back and check out the last 10 minutes , but 
(ROOT (S (S (NP (PRP i)) (VP (VBD did) (VP (VP (VB go) (ADVP (RB back))) (CC and) (VP (VB check) (PRT (RP out)) (NP (DT the) (JJ last) (CD 10) (NNS minutes)))))) (, ,) (CC but)))
(ROOT (S (S (NP (PRP )) (VP (VBD ) (VP (VP (VB ) (ADVP (RB ))) (CC ) (VP (VB ) (PRT (RP )) (NP (DT ) (JJ ) (CD ) (NNS )))))) (, ) (CC )))