Assertion: cold front's air | /r/HasProperty | the boss
Facets:
Source sentences:
text: Because cold air is more dense than warm air at the surface of the earth, cold air is "the boss" and can push its way around as it pleases.
text: Again, the winds on the warm side of the front don't really matter: Cold air is the boss, and if the cold air isn't advancing or retreating, the front is stationary.