offers an aids subtext , skims over the realities of gay sex , and 
(ROOT (VP (VP (VBZ offers) (NP (DT an) (NNS aids) (NN subtext))) (, ,) (VP (VBZ skims) (PP (IN over) (NP (NP (DT the) (NNS realities)) (PP (IN of) (NP (JJ gay) (NN sex)))))) (, ,) (CC and)))
(ROOT (VP (VP (VBZ ) (NP (DT ) (NNS ) (NN ))) (, ) (VP (VBZ ) (PP (IN ) (NP (NP (DT ) (NNS )) (PP (IN ) (NP (JJ ) (NN )))))) (, ) (CC )))