def METHOD_NAME():
    file = "tests/data/polyphasegenetic.ped2.txt"
    samples = ["Parent_C"]
    parents = ["Parent_A", "Parent_B", "Parent_C", "Parent_D", "p1", "p2", "p3", "p4", "p5"]
    samples, sam_to_cop, sam_to_prog = determine_pedigree(file, samples, parents)
    assert sam_to_cop["Parent_C"] == "Parent_D"
    assert sam_to_prog["Parent_C"] == ["p4", "p5"]