Matched context for costly and difficult

The page lists matched contexts for costly and difficult.

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