"Yakiniku" means grilled meat in Japanese.
This is "Tan". It's beef tongue. We almost eat it with salt and lemon juice.
This is "Karubi". It's a part of rib which is greasy and rich taste.
This is "Harami". It's a thin part of diaphragm. ...What is diaphragm? I don't know.
We eat beef a cut of various parts!