Complex sentence: Mrs. Bean also rescued two of her dairy cows from the settlement, and brought them to Nanyehi, who learned to raise the cattle and to eat dairy products, which would sustain the Cherokee when hunting was bad.
Split into simpler sentences: Mrs. Bean also rescued two of her dairy cows from the settlement, and brought them to Nanyehi. Nanyehi learned to raise the cattle and to eat dairy products, which would sustain the Cherokee when hunting was bad.