Or maybe the behavior of eBayers can be explained only by subtler and more carefully tested theories that have not yet been devised.
It is possible that the behavior of eBayers can be explained by subtler and more carefully tested theories.
The behavior of eBayers can be easily and reliably predicted.
No man came out of the clearing.
The baby is sitting in a chair.
British book reviews are poor.
A male is outdoors.
Three people are on their computers.
A pair of women lie on the carpet watching a movie.