Each symbol (♥, Δ, ⊕) means a relationship between two people.

A ♥ B means Person A is the brother of Person B.

A Δ B means Person A is the sister of Person B.

A ⊕ B means Person A is the father of Person B.

Below are four statements:

1. F Δ C ♥ N ⊕ M
2. M Δ N ⊕ C ♥ F
3. M ⊕ N Δ C ♥ F
4. N ♥ M Δ F ⊕ C