Matched context for absence and presence

The page lists matched contexts for absence and presence.

Share - absence	Share - presence	Phrase
2.89%	3.48%	detect {absence or presence} [perform operation]
4.22%	2.11%	{absence or presence} [does] characterize
3.12%	1.30%	flame {absence or presence}
5.45%	0.90%	signal {absence or presence}
3.18%	1.37%	solvent {absence or presence}
1.94%	1.56%	determine {absence or presence} [perform operation]
1.59%	2.35%	sense {absence or presence} [perform operation]
0.62%	2.87%	catalyst {absence or presence}
2.47%	0.48%	compound {absence or presence}
1.35%	1.38%	indicate {absence or presence} [perform operation]
1.44%	0.82%	oxygen {absence or presence}
1.19%	0.55%	{absence or presence} [does] cause
1.52%	0.18%	{absence or presence} [does] indicate
0.79%	0.22%	{absence or presence} [does] make
0.48%	0.41%	{absence or presence} [does] prevent
0.43%	0.36%	{absence or presence} [does] reduce
1.21%	0.26%	agent {absence or presence}
0.72%	0.47%	air {absence or presence}
2.65%	0.21%	close in {absence or presence}
1.14%	0.27%	combustion {absence or presence}
0.69%	0.61%	condition {absence or presence}
1.30%	0.22%	fluid {absence or presence}
2.41%	0.31%	force {absence or presence}
0.39%	0.32%	fuel {absence or presence}
0.98%	0.48%	gas {absence or presence}
2.06%	0.38%	occupant {absence or presence}
2.16%	0.30%	pressure {absence or presence}
0.96%	0.49%	responsive to {absence or presence}
0.77%	0.21%	valve {absence or presence}