Can anyone please identify what cross breeds make up my dog? He is about 1 year old and I am in the process of adopting him from acquaintances that cannot keep him. They tell me he is a Mastiff cross Great Dane, but Im a tad skeptical with his red nose. A few friends have said that a red nose is a pit bull, is this true? He has the sweetest nature and is a gorgeous boy but Im a bit concerned, mainly about the by-laws etc. and if he would be considered a "restricted" breed. If anyone has a similar dog or can give me a heads up here I'd really appreciate it.