Matched context for refuel and back up

The page lists matched contexts for refuel and back up.

Share - refuel	Share - back up	Phrase
14.57%	7.16%	{refuel or back up} pipe [perform operation]
2.11%	8.26%	fuel [does] {refuel or back up}
1.10%	2.75%	so [resume] {refuel or back up}