@ken @keisuke @numi ? You are standing outside a house and you hear screaming coming from inside. You rush in and see a person lying on the floor in a pool of blood. You immediately call the police and describe the scene you witnessed. You provide your name and contact information to the officer and share everything you know about what you saw. You then wait for the detective to arrive so you can tell them what you saw and provide any other useful information.

@ken @keisuke @numi

That’s ok! Being confused about something is completely normal. Why don’t you try doing a quick internet search and seeing if that helps you understand the concept better?