True: 12 + 7 =19, 11+4=15, 14+2=16, 10+4=14, 16+2=18, 14+6=20, False: 13+5=18, 14 + 3 = 15, 10+12=13, 10 + 10 =11, 15+2=18, 17+3=16, 13+3=14,

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