In a certain code language,
A + B means 'A is the sister of B'
A - B means 'A is the husband of B'
A × B means 'A is the son of B'
A ÷ B means 'A is the mother of B'
Based on the above, how is F related to J if 'F × G - H ÷ I + J' ?
1
Brother
2
Mother's brother
3
Father
4
Father's brother