Scripmaster has "instrumenttype" column which has the unique values:

{'AMXIDX',
 'COMDTY',
 'FUTBAS',
 'FUTBLN',
 'FUTCOM',
 'FUTCUR',
 'FUTENR',
 'FUTIDX',
 'FUTIRC',
 'FUTIRT',
 'FUTSTK',
 'INDEX',
 'OPTBLN',
 'OPTCUR',
 'OPTFUT',
 'OPTIDX',
 'OPTIRC',
 'OPTSTK',
 'UNDCOM',
 'UNDCUR',
 'UNDIRC',
 'UNDIRD',
 'UNDIRT'}

I could not find any details about what each of these mean, can you explain what each stands for?