<prompt> Translate the following text to EnglishMfano wa picha ya Verrocchio David mwaka 1471, ambayo mwanafunzi wake Leonardo da Vinci, mwenye umri wa miaka 19 aliigiza, aliigiza katika ukumbi wa sanaa wa Paris.  <response>: On the second floor is a Verrocchio David c.1471, for which his 19-year-old pupil Leonardo da Vinci is believed to have been the model. 