Greg took the pen out of his pants pocket. He took his keys out of his pants pocket. He took his cell phone out of his pants pocket. He took his wallet out of his pants pocket. He put everything into a plastic tray. He took his shoes off. Greg was at the airport. He had to get on the airplane. But he had to pass through security first. He passed through security. He put his pen and keys back into his pocket. He put his cell phone and wallet back into his pocket. He put his shoes back on his feet. He got on the airplane.