Established varieties of leaf lettuce such as Royal Oak Leaf, Salad Bowl, Red Sails, Black-seeded Simpson and Simpson Elite deserve the popularity they enjoy.
(Established varieties of leaf lettuce such as Royal Oak Leaf, Salad Bowl, Red Sails, Black-seeded Simpson and Simpson Elite; deserve; the popularity they enjoy) (the popularity; enjoy; they)
Established varieties of leaf lettuce such as Royal Oak Leaf, Salad Bowl, Red Sails, Black-seeded Simpson and Simpson Elite the popularity
deserve enjoy
the popularity they enjoy
they