How can Lessing's "Laocoon" be used to defend the expression "ut pictura poesis"?

How can Lessing's "Laocoon" be used to defend the expression "ut pictura poesis"? In answering this question, discuss how Lessing tends to privilege poetry over painting in employing the shield of Aeneas in Virgil as opposed to the shield of Achilles in Homer. Your answer should demonstrate awareness of how Lessing wants us to interpret this Latin adage as well as the historical issues the surround the dating of the Laocoon as a work of art