Subscript and superscript

Hi, I want to show subscript and superscript (Fe3O4Reduction) in following component label.

dbc.InputGroupText(‘Fe’, 2 O 3 Reduction’, className=“inputgrouptitle”, style={‘width’:‘20%’} )

The problem is that the subscript and superscripts shows up correctly but the space between the subscript and the next word is not shown. In the above example, instead of showing ‘Fe3O4 Reduction’, ‘Fe3O4Reduction’ is shown.

How to insert the space between a ‘4’ and ‘Reduction’?