sentence: The man is hunched over on the the ground trying to build a fire by himself. sentence:  It's all about adding oxygen at the right time once you have started a nice fire. sentence:  Also, if the fire is dead or dying you just hit it with a little bit more oxygen and it will help bring it back up . sentence:  With a pocket bellow even when its wet it will still build a fire really well back up it just takes more time and patience.