YOU SAID:
potatoes are not bananas for they do not think banana thoughts
INTO JAPANESE
彼らはバナナの考えを考えていないため、ジャガイモはバナナではありません
BACK INTO ENGLISH
Potatoes are not bananas because they don't think of banana ideas
INTO JAPANESE
彼らはバナナのアイデアを考えていないので、ジャガイモはバナナではありません
BACK INTO ENGLISH
Potatoes are not bananas because they don't think of banana ideas
That didn't even make that much sense in English.