You can tell the difference by wetting a corner of a white handkerchief and rubbing the carpet.
If you moisten a white handkerchief and rub the carpet, you should be able to spot the difference.
Rubbing at the carpet with a handkerchief won't enable you to tell the difference.
A woman running near a Subway.
Children are playing hopscotch in front of some buildings.
the men are seated
According to age.
Someone is seated in a restaurant.
They have much more applicants than the number of places they can provide in the school.