Three boxes, called one, two and three exist. Box one covers a medium orange melon. North of a medium green melon is a medium orange watermelon. The medium orange watermelon is inside box one. The medium green melon is covered by box one. West of the medium orange melon there is a big orange melon. The big orange melon is in box one. A medium green melon and a medium yellow watermelon are inside box three. Box three contains a small yellow melon which is south of the medium green melon and is to the east of the medium yellow watermelon. Box three contains a medium green apple. To the south of the small yellow melon there is the medium green apple.
Where is the small yellow melon regarding box three?