Complex sentence: She claimed to have acquired the nickname "Babe" (after Babe Ruth) upon hitting 5 home runs in a childhood baseball game, but in reality, her Norwegian mother had called her "Bebe" from the time she was a toddler.
Split into simpler sentences: She claimed to have acquired the nickname "Babe" (after Babe Ruth) upon hitting five home runs in a childhood baseball game. In reality, her Norwegian mother had called her "Bebe" from the time she was a toddler.