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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def __check_conflict_fronds(x, y, w, z, dfs_data):
 """Checks a pair of fronds to see if they conflict. Returns True if a conflict was found, False otherwise."""


    # Case 1: False frond and corresponding branch marker
    # --x and w should both be negative, and either xy or wz should be the same value uu
    if x < 0 and w < 0 and (x == y or w == z):
        # --Determine if the marker and frond correspond (have the same low-value)
        if x == w:
            return True
        return False

    # Case 2: Fronds with an overlap
    if b(x, dfs_data) == b(w, dfs_data) and x > w and w > y and y > z:
        return False

    # Case 3: Branch marker and a frond on that branch
    if x < 0 or w < 0:
        # --Determine which one is the branch marker
        if x < 0:
            u = abs(x)
            t = y
            x = w
            y = z
        else:
            u = abs(w)
            t = z
        # --Run the rest of the tests
        if b(x, dfs_data) == u and y < u and \
                (x, y) in __dfsify_branch_uv(u, t, dfs_data):
            return True
        return False

    # If non of the conflict conditions were met, then there are obviously no conflicts
    return False