The exact nature and extent of this support is disputed.

The extent to which these organizations can fight for the rights of Chinese workers is disputed.

The extent to which his policies deserve the credit is disputed.

The extent to which slaves were used as a labour force in farming is disputed.

Latin continued to be used for writing but the extent of its use for speech has been much disputed.

The extent of his influence over the Kennedy administration is disputed.

The extent to which such actions are profitable is much disputed.

The extent to which such portrayals are stereotypes is disputed.

However, the extent that such peer review actually occurs is disputed.

However the extent and nature of her involvement are disputed.