YOU SAID:
Pizza is the best thing to happen in this world
INTO JAPANESE
ピザは最高にこの世界で起こることです。
BACK INTO ENGLISH
Pizza is the best to happen in this world.
INTO JAPANESE
この世界で発生するピザは最高です。
BACK INTO ENGLISH
Pizza in this world is the best.
INTO JAPANESE
この世界のピザは最高です。
BACK INTO ENGLISH
This world's Pizza is the best.
INTO JAPANESE
この世界のピザは最高です。
BACK INTO ENGLISH
This world's Pizza is the best.
You've done this before, haven't you.