'M × N' means 'M is the wife of N'. 'M + N' means 'M is the husband of N'. 'M ÷ N' means 'M is the son of N'. 'M - N' means 'M is the daughter of N'. How is E related to H in the equation E × F ÷ G + H?
1
Daughter-in-law
2
Mother in law
3
Wife
4
Sister