 Condo living, the spread of AIDS through prostitutes and veterinary surgery. 
( ( ( ( Condo living ) , ) ( ( the spread ) ( of ( AIDS ( through ( ( prostitutes and ) ( veterinary surgery ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Condo) (NN living)) (, ,) (NP (NP (DT the) (NN spread)) (PP (IN of) (NP (NP (NNP AIDS)) (PP (IN through) (NP (NP (NNS prostitutes)) (CC and) (NP (JJ veterinary) (NN surgery))))))) (. .)))
It is a common misconception that prostitutes carry STDs.
( It ( ( ( is ( a ( common misconception ) ) ) ( that ( prostitutes ( carry STDs ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (NP (DT a) (JJ common) (NN misconception)) (SBAR (IN that) (S (NP (NNS prostitutes)) (VP (VBP carry) (NP (NNS STDs)))))) (. .)))