YOU SAID:
Purple, because aliens don't wear hats.
INTO JAPANESE
紫、外人は帽子をかぶっていないから。
BACK INTO ENGLISH
Purple, foreigners are not wearing a hat.
INTO JAPANESE
紫、外国人は帽子をかぶっていません。
BACK INTO ENGLISH
Purple, foreigners are not wearing a hat.
That didn't even make that much sense in English.