2 sentences

1. 严禁卖淫嫖娼。

   yán​jìn mài​yín piáo​chāng.

   Prostitution and patronizing prostitutes are strictly prohibited.

   Source: Dong Chinese Dictionary

2. 没有证据能证明存在过卖淫。

   méi​yǒu zhèng​jù néng zhèng​míng cún​zài guo mài​yín.

   There is no evidence that prostitution took place.

   Source: OpenSubtitles