which museum exhibits the the baptism of christ by andrea del verrocchio ?
select distinct var_uri where brack_open dbr_The_Baptism_of_Christ_ attr_open Verrocchio attr_close dbo_museum var_uri sep_dot dbr_The_Baptism_of_Christ_ attr_open Verrocchio attr_close dbo_author dbr_Andrea_del_Verrocchiobrack_close