Matched context for draft and convection

The page lists matched contexts for draft and convection.

Share - draft	Share - convection	Phrase
26.21%	5.47%	{draft or convection} fan
4.06%	9.72%	forced {draft or convection}
5.89%	5.86%	natural [color] {draft or convection}
4.30%	3.90%	{draft or convection} tube
1.85%	3.48%	{draft or convection} [does] cool
2.06%	1.83%	air {draft or convection}