Some turtles are not plastrons. All skinks are turtles. If wasps eat haploids then fly pupae are lost. Wasps do not eat haploids and fly pupae are not lost. Fly pupae are not lost.
All axolotls are bream.
All catfish are not bream. Some axolotls are not bream. Some catfish are bream. All axolotls are not bream. All bream are axolotls.