Matched context for difficult and costly

The page lists matched contexts for difficult and costly.

Share - difficult	Share - costly	Phrase
1.82%	2.14%	more {difficult or costly}
1.70%	1.76%	very {difficult or costly}
0.41%	5.94%	{difficult or costly} to manufacture
0.39%	1.00%	{difficult or costly} to assemble
0.24%	1.71%	{difficult or costly} to produce
0.14%	6.24%	less {difficult or costly}
0.43%	0.58%	quite {difficult or costly}
0.17%	0.89%	relatively {difficult or costly}