A group of people are either standing or sitting , some are wearing hats and scarves , while some are not .
A group of people , none with hats or scarves , are lieing on the ground .
A group of people are either standing or sitting, some are wearing hats and scarves, while some are not.
A group of people, none with hats or scarves, are lieing on the ground.
If there are none with hats or scarves, then there cannot be some wearing hats and scarves.  People cannot be standing or sitting while also lieing on the ground.
If there are none with hats or scarves , then there can not be some wearing hats and scarves . People can not be standing or sitting while also lieing on the ground .