Take the following as truth: Splendid sculpture of the Two Slaves by Michelangelo; Leonardo da Vinci's fabled Mona Lisa (La Joconde), but also his sublime Virgin of the Rocks; Titian's voluptuous Woman at her Toilet; the poignant Old Man and His Grandson by Ghirlandaio.
Then the following statement: "Mona Lisa was a work of art created by Leonardo da Vinci." is true, false, or inconclusive?