Matched context for ellipsoidal and trapezoidal

The page lists matched contexts for ellipsoidal and trapezoidal.

Share - ellipsoidal	Share - trapezoidal	Phrase
11.96%	28.31%	{ellipsoidal or trapezoidal} [shape] shape
32.44%	10.01%	{ellipsoidal or trapezoidal} [shape] cross-section
5.77%	2.29%	generally [resume] {ellipsoidal or trapezoidal}