He looked at her oddly, as if the question were a perfectly valid one which it had never struck him to ask himself.

But, he added, "It is a perfectly valid thing to do."

It's a perfectly valid enquiry from someone who only wants the best for her own children.

It is a perfectly valid public health tool in other states.

They're perfectly valid, and nobody will hold your decision against you.

While some of the comments here raise perfectly valid points, they're not the only story by any means.

He understood that there were perfectly valid reasons to leave a known spy in place.

In their different ways, all the opponents of the scheme raise perfectly valid points.

"Democrats certainly have a perfectly valid explanation, but I am not sure people understand it," she said.

What you've got here looks like a perfectly valid claim form, only it can't possibly be one.