Matched context for course and period

The page lists matched contexts for course and period.

Share - course	Share - period	Phrase
0.21%	0.13%	change {course or period} [perform operation]
0.19%	0.27%	cycle {course or period}
0.34%	1.44%	injection {course or period}
0.57%	0.27%	operation {course or period}
0.42%	0.15%	stroke {course or period}