The United Nations claims that greenhouse gases--mostly carbon dioxide, the gas humans and animals "breathe out" and 
(The United Nations; claims; that greenhouse gases--mostly carbon dioxide, the gas humans and animals "breathe out) Context(The United Nations claims,List([0, 25))):(greenhouse gases; breathe out; )
The United Nations claims,List([0, 25))
The United Nations greenhouse gases
claims breathe out
that greenhouse gases--mostly carbon dioxide, the gas humans and animals "breathe out