$$A + B$$ means ‘B is the sister of A’:
$$A - B$$ means ‘A is the father of B’:
$$A \times B$$ means ‘B is the son of A’;
$$A \div B$$ means ‘B is the husband of A’.
If $$E \div F - H + J \times G + D$$, then how is D related to H?
In the diagram, square shows the males, circle shows the females, vertical lines shows the generation, single horizontal lines shows the brother/sister and double horizontal lines shows the couples.
From the diagram,
D is the niece of the H
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