sentence: A person goes upstairs supporting on a crutch, then sits on the last step while a man follows him. sentence:  The man lifts up the carpet, then the person gives the man a carpet runner with nails while talking both men. sentence:  After, the man puts the carpet runner on the wood step and hummers the loosed nails. sentence:  Next, the man put on the carpet and uses a machine and a hammer to fix the loosed carpet.