code: def get_mutually_unstable_correlation_triples(graph: BELGraph) -> Iterable[NodeTriple]:
      
      cg = get_correlation_graph(graph)
  
      for a, b, c in get_correlation_triangles(cg):
          if all(NEGATIVE_CORRELATION in x for x in (cg[a][b], cg[b][c], cg[a][c])):
              yield a, b, c
docs: Yield triples of nodes (A, B, C) such that ``A neg B``, ``B neg C``, and ``C neg A``.