Well, it wasn't light yet when the gunfire starts.
( Well ( , ( it ( ( ( ( was n't ) light ) ( yet ( when ( ( the gunfire ) starts ) ) ) ) . ) ) ) )
(ROOT (S (INTJ (UH Well)) (, ,) (NP (PRP it)) (VP (VBD was) (RB n't) (ADJP (JJ light)) (SBAR (ADVP (RB yet)) (WHADVP (WRB when)) (S (NP (DT the) (NN gunfire)) (VP (VBZ starts))))) (. .)))
The gunfire was very loud because it was close by.
( ( The gunfire ) ( ( ( was ( very loud ) ) ( because ( it ( was ( close by ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN gunfire)) (VP (VBD was) (ADJP (RB very) (JJ loud)) (SBAR (IN because) (S (NP (PRP it)) (VP (VBD was) (ADJP (JJ close) (PP (IN by))))))) (. .)))