An integer N (3 ≤ N ≤ 10^5), representing some quantity or size.
N-1 tuples (a_i, b_i, c_i) where each tuple consists of:
    - Two integers a_i and b_i (1 ≤ a_i, b_i ≤ N)
    - One integer c_i (1 ≤ c_i ≤ 10^9).
Two integers Q (1 ≤ Q ≤ 10^5) and K (1 ≤ K ≤ N).
Q tuples (x_j, y_j) where each tuple consists of:
    - Two integers x_j and y_j (1 ≤ x_j, y_j ≤ N)
    - x_j ≠ y_j and x_j ≠ K, y_j ≠ K.

### Example Input:
```
5
1 2 1
1 3 1
2 4 1
3 5 1
3 1
2 4
2 3
4 5
```

### Function Signature:
Write a function f(N, edges, Q, K, queries) that takes in the input.
def f(N: int, edges: List[Tuple[int, int, int]], Q: int, K: int, queries: List[Tuple[int, int]]):
    '''
    N: an integer
    edges: a list of tuples, each containing three integers
    Q: an integer
    K: an integer
    queries: a list of tuples, each containing two integers
    '''