This was an honor, but there may have been an additional motivation behind the invitation.

Music was then added to provide additional motivation.

There is an additional motivation for this type of festival.

A. It's not strictly financial, but there's an additional financial motivation.

An additional motivation was to replace the Haitian constitution which prohibited foreign ownership of land.

It is implied there may be some additional motivation within him, aside from senseless killing.

There were also groups of high school cheerleaders throughout for additional motivation.

Gerardi also found links between the military and the illegal drug trade in Guatemala, providing an additional motivation.

He said the comments made by Oklahoma fans before the game served as additional motivation.

All these subjects are interlinked and this apparent complexity must provide us with the additional motivation needed to improve our knowledge of environmental health issues.