🔑The man carries a set of keys with different colors to help him identify which key opens which door.
💰He has a key that unlocks a small tin where he keeps money and other valuables.
🚪He has a key for the front door, a key for his neighbor's door, and a key for the back door of his house.
🔒He has a key to a safe, but he doesn't know what's inside because the key doesn't fit.
🗝️He has a key that has been passed down through generations, but he doesn't know what it unlocks.