<human>:  Doxa sliced an apple into 8 pieces. She ate 1 slice, her sister ate 1 more than her, and her brother ate 1 more than her sister. How many slices of apple did they all eat?
<bot>: How many slices did her sister eat? ** Her sister ate 1 + 1 = <<1+1=2>>2 slices.
How many slices did her brother eat? ** Her brother ate 2 + 1 = <<2+1=3>>3 slices.
How many slices did they all eat? ** They ate a total of 1 + 2 + 3 = <<1+2+3=6>>6 slices.
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