Matched context for sophisticated and difficult

The page lists matched contexts for sophisticated and difficult.

Share - sophisticated	Share - difficult	Phrase
4.88%	3.88%	{sophisticated or difficult} [difficulty] become
8.02%	1.82%	more {sophisticated or difficult}
22.58%	0.51%	{sophisticated or difficult} [difficulty] system
9.43%	0.38%	{sophisticated or difficult} [difficulty] control
7.41%	0.37%	{sophisticated or difficult} [difficulty] device