rebellious
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First, it’s necessary to justify that the orcs are also guarding the dwarves. That is, to calculate their number. But even after calculating the number of orcs killed, it will not be possible to compare the value of the guard and the objects being guarded, because there is that very discrepancy that no one knows. Alternatively, one could assume that the dwarves may not be guarded at all (and they really aren't), so just take them without worrying.