The problem is that we have no coherent idea of what we want examinations to do.

You have to present a coherent idea Of the self.

But I don't have any coherent idea of what a fundamental particle is like.

These protesters, however, have no coherent idea what they're after.

Thus from the highway the building appears busy, even fussy, and lacking in a coherent idea.

None of them had a coherent idea of what had happened.

They are simply not hearing any coherent ideas about plotting America's course over the next couple of decades.

I couldn't actually extract coherent ideas from that prose.

The origin of these coherent (workable) ideas is the human nervous system.