The other third will wait for labor to occur naturally.

Blue is not a common color for food, perhaps because it doesn't occur naturally all that often.

There are naturally occurring C-14 in your body right now.

"But in your case that may not have been a naturally occurring state."

For this reason, they do not occur naturally in the wild.

All we can say for sure is that it's not naturally occurring.

"To my knowledge, this is the most gold" ever found to occur naturally in the deep sea.

This can occur naturally, but often it is a medical condition.

But the water could not occur here naturally; it had to come in from somewhere.

For this reason, there are no longer any naturally occurring surface water.