1.   Here he challenges the notion that practice is activity and not thought.

2.   Some challenge the notion of corporate culture as the primary culprit.

3.   These women challenged accepted notions of female roles in society.

4.   This directly challenges the notion of a hard distinction between sunrise industries and sunset industries with the latter doomed inevitably to Decline.

5.   This finding challenges the notion that carbohydrate malabsorption is uncommon in patients with chronic pancreatitis.

6.   Judging the awards is a fascinating experience which has a refreshing tendency to challenge preconceived notions.

7.   And the idea of gay men in the military challenges the notion that gay men are not as masculine as their heterosexual peers.

8.   And they challenged the notion of a presidential victory.