Complex sentence: Green Apple, Cherry, Lemon, Orange, Grape, and Strawberry, though they were previously similar to today's peanut butter M&M's, and for a time, were available in a chocolate and strawberry (instead of peanut butter) variety.
Split into simpler sentences: Green Apple, Cherry, Lemon, Orange, Grape, and Strawberry. Although they were previously similar to today's peanut butter M&M's, and for a time, were available in a chocolate and strawberry (instead of peanut butter) variety.