OK. Here is what I got.
proc means data=sashelp.cars nway min max ;
class type ;
var mpg_city MPG_Highway;
ods output summary=cars;
run;
title 'Gas range';
proc sgplot data=cars ;
highlow x=type low=MPG_Highway_min high=MPG_Highway_max / type=bar transparency=.5
dataskin=pressed barwidth=.6 fillattrs=(color=blue) nooutline legendlabel='HighWay' name='b';
highlow x=type low=mpg_city_min high=mpg_city_max / type=bar transparency=.5
dataskin=pressed barwidth=.8 fillattrs=(color=green) nooutline legendlabel='City' name='a';
keylegend 'a' 'b' / location=inside position=ne ;
yaxis min=0 label='MPG';
footnote j=left 'Across Vehicle Types';
run;
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