The modernist movement in literature was a 'reaction against' traditional literary conventions.
The announcement produced an angry/stunned 'reaction' from most of the people at the meeting.
There has been a 'mixed reaction' [=people have reacted in different ways] to the new policy.
(..) It's all there. And there's a boy, too. Slip him a few quid to shut him up. I know the inquisitors' bag of trick s. I taught most of them. It's just a reaction. An over-reaction, if you like. I did have one or two questions. - About Prideaux. - Goddamn it! - I got him back, didn't I? (..)2011 Tinker Tailor Soldier Spy