Complex sentence: Marmee, being the strong one, tells Jo of how she copes with Beth's death: she tells Jo that she cannot be defeated by Beth's death, and that she must move on ("Days of Plenty").
Split into simpler sentences: Marmee, being the strong one, tells Jo of how she copes with her death. She tells Jo that she cannot be defeated by her death and that she must move on ("Days of Plenty").