However, one certainty is that the U.S. population is aging and there will be fewer workers supporting each retiree.
the aging of the U.S. population is considered a certainty.
the aging status of the U.S. population is considered an uncertainty.
Three people looking down at green grass outside.
This, said Jesus.
Susan was washing the dishes.
The man has long facial hair.
two dogs play by a body of water.
Maybe it would be better if it was just Mr. White.