Matched context for presence and activation

The page lists matched contexts for presence and activation.

Share - presence	Share - activation	Phrase
2.87%	1.79%	catalyst {presence or activation}
1.56%	1.51%	determine {presence or activation} [perform operation]
3.48%	0.43%	detect {presence or activation} [perform operation]
0.19%	1.30%	{presence or activation} determination
0.55%	1.11%	{presence or activation} [does] cause
0.18%	0.18%	{presence or activation} [does] effect
0.24%	0.25%	assure {presence or activation} [perform operation]
0.19%	0.50%	element {presence or activation}
0.40%	0.45%	ensure {presence or activation} [perform operation]
0.21%	0.21%	operator {presence or activation}
0.82%	0.43%	oxygen {presence or activation}
0.28%	0.31%	require {presence or activation} [perform operation]
0.49%	0.38%	responsive to {presence or activation}
0.90%	0.21%	signal {presence or activation}
0.29%	0.48%	simultaneous [chronology] {presence or activation}
0.24%	1.38%	system {presence or activation}
0.21%	1.69%	valve {presence or activation}