A group of people , most of them wearing hats , are standing around .
A group of standing people , some wearing hats
A group of people, most of them wearing hats, are standing around.
A group of standing people, some wearing hats
If most of a group of people are wearing hats then some of them must be wearing hats since "most" assumes a larger percentage than "some"
If most of a group of people are wearing hats then some of them must be wearing hats since `` most '' assumes a larger percentage than `` some ''