Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.

A woman instructs the student how to use outdoor knives.
He is explaining techniques and equipment.

The player from the green team begins running with his stick alongside his opponent to go towards the ball.
There are two teams represented by the color green and color white playing lacrosse against each other in an outdoor field.

Pedestrians walk through the city.

Someone watches her go, tightens his lips, then plods back toward his apartment across the street.