public function dataProviderForOneWayAxiomsThreeSamples() { return [[[1, 2, 3], [3, 4, 5], [5, 6, 7]], [[4, 5, 3, 6, 5], [5, 4, 3, 4, 4], [7, 6, 6, 5, 6]], [[-4, 4, 5, 6, 7], [-5, 4, 6, 6, 7], [0, 1, 2, 3, 4]]]; }