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

Example Input: It swings open revealing a stunned someone on her cellphone.
Example Output: Someone faces a door and knocks.

Example Input: Someone turns and looks at someone.
Example Output: A teenage boy throws another rock as a pickup truck pulls up behind him.

Example Input: Someone stops on a portico and turns to greet someone, a professor, who is running over to her, calling her name.
Example Output:
Someone, wearing jeans and carrying an armful of books, is running up a broad set of steps in the sunlight, greeting other students as she passes.