YOU SAID:
the green caterpillar is something glass
INTO JAPANESE
緑色の毛虫はガラスのようなものである
BACK INTO ENGLISH
the green caterpillar is like glass
INTO JAPANESE
緑色の毛虫はガラスのようである
BACK INTO ENGLISH
the green caterpillar is like glass
You've done this before, haven't you.