An older gentleman wearing a hat is walking on crutches next to a busy street.
A man on crutches is trying to cross the street.
A gentleman is walking on crutches next to a busy street does not mean that he is trying to cross it.
It is not sure he is about to cross the street
An older gentleman is not necessarily on crutches, a man on the street is not always wearing a hat, and walking next to a street does not necessarily mean trying to cross the street.