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

A girl and boy try the tight rope together.
Two people are playing with a Frisbee as one person walks on the rope.

He watches someone with a warm grin.
Someone looks at him, then at her hand.

He glances back at the departing train then heads off.

A door slides shut and she mouths.