In the above opinion fusion process, we assume that all of the fused opinions are multiple views of the same crystal (Condition 2). This condition is true only when a single crystalline phase is present in the material. However, when a specimen contains multiple crystal structures, the 4D-STEM dataset will include DPs corresponding to different crystals, and as a result, the opinions for different crystals may be fused. When incorporating an opinion irrelevant to the crystal being classified, it will negatively influence the decision process or lead to the wrong decision. In the original candidate pool (all possible orientations that can be collected for testing), there are 94 DPs for each crystal corresponding to 94 testing zone axes. To test the tolerance of the method to irrelevant DPs, when classifying test cases, we introduced the DPs of other crystal structures to the candidate pool, randomize the pool, and then conduct the classification. The number of irrelevant DPs varies from 0.5 to 3 times of the original pool size (i.e., 94). As expected, the accuracy decreases as the number of irrelevant DPs increases (Fig. "Irrelevant opinions 0 -0.5 -1 -2 -3"); however, it remains higher than 0.9 even when the number of DPs corresponding to the true crystal is only half of the size of the candidate pool.