Instructions: In this task, you are given a public comment from online platforms. You are expected to classify the comment into two classes: obscene and non-obscene. A comment is obscene if it is considered offensive to the public sense of decency, for example because it too obviously relates to sex or contains language regarded as taboo in polite usage.
Input: Comment: These are bikes w/ an engine.

They don't belong on trails that are designated for non-motorized traffic.

Take them to an ATV trail and don't bother ppl w/ your obnoxiousness.

Personally I'm an engineer and custom builder of many things and have built MANY motorized bikes and such and I love them...tho not too big a fan of electric transport...just not loud enough or fast/powerful enough in general...and batteries are a pain in the ass.

I know where my projects belong tho...and it's not on hiking trails.

...so if your ebikes are soooo badass take them where they belong.
Output:
Obscene