YOU SAID:
Purple because aliens don't wear hats.
INTO JAPANESE
エイリアンは帽子をかぶらないので紫色。
BACK INTO ENGLISH
Aliens are purple because they don't wear hats.
INTO JAPANESE
エイリアンは帽子をかぶらないので紫色です。
BACK INTO ENGLISH
Aliens are purple because they don't wear hats.
That didn't even make that much sense in English.