WHAT I MEAN FROM SF/F/H

Whenever I use the term sf/f/h it means science fiction/fantasy/horror and related genres.  Now I can spend paragraphs and paragraphs describing each of the three categories but instead I am going to use Green's Law.  Green's Law states the following, 1.   Whatever the editor of a science fiction periodical,anthology or other publication buys is a science fiction poem.  Ditto for fantasy poem, ditto for horror poem.  The definitions may be overly simplistic but it seems to work.  What are your thoughts?