YOU SAID:
jack will fly on a frying pan over Japan
INTO JAPANESE
ジャックが日本上空をフライパンで飛び
BACK INTO ENGLISH
Jack flies over Japan in a frying pan
INTO JAPANESE
ジャックはフライパンで日本を飛ぶ
BACK INTO ENGLISH
Jack flies in Japan
INTO JAPANESE
ジャックが日本で飛ぶ
BACK INTO ENGLISH
Jack flies in Japan
That didn't even make that much sense in English.