<<< native [ ESuper (EIdentifier "x") (ENumber "2") , ESymbol Bin "+" , ESuper (ENumber "2") (ENumber "2") , ESymbol Bin "+" , ESuper (EIdentifier "x") (ESymbol Ord "\8242") , ESymbol Bin "+" , ESuper (EIdentifier "x") (ESymbol Accent "'") , ESymbol Bin "+" , ESuper (EIdentifier "x") (EMathOperator "''") , ESymbol Bin "+" , EIdentifier "x" , EIdentifier "\8242" , ESymbol Bin "+" , ESuper (ESuper (EIdentifier "x") (ESymbol Accent "'")) (ESymbol Accent "'") , ESymbol Bin "+" , ESuper (ESuper (EIdentifier "x") (ESymbol Accent "'")) (ENumber "2") , ESymbol Bin "+" , ESuper (EIdentifier "x") (EGrouped [ ESymbol Accent "'" , ESymbol Bin "+" , ESymbol Accent "'" ]) , ESymbol Bin "+" , ESuper (ESuper (EIdentifier "x") (ESymbol Accent "'")) (ESymbol Accent "'") , ESymbol Bin "+" , ESuper (EIdentifier "x") (ESuper (ESymbol Accent "'") (ESymbol Accent "'")) , ESymbol Bin "+" , ESuper (ESymbol Accent "'") (ESymbol Accent "'") , ESymbol Bin "+" , ESuper (ESymbol Accent "'") (ESymbol Accent "'") ] >>> eqn x sup 2 + 2 sup 2 + x sup prime + x sup ' + x sup "''" + x prime + {x sup '} sup ' + {x sup '} sup 2 + x sup {' + '} + {x sup '} sup ' + x sup {' sup '} + ' sup ' + ' sup '