<<< native [ EBoxed (EGrouped [ ESuper (EIdentifier "x") (ENumber "2") , ESymbol Bin "+" , ESuper (EIdentifier "y") (ENumber "2") , ESymbol Bin "+" , ESuper (EIdentifier "z") (ENumber "2") ]) ] >>> tex \boxed{x^{2} + y^{2} + z^{2}}