select distinct substring(name,1,1) from stamps ,paper_master,np_master where paper_master.paper_code=stamps.paper_code and paper_master.paper='Unwatermarked Gummed coated stamp paper' and np_master.np_code=stamps.np_code and np_master.np='P' order by substring(name,1,1)
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Paper >> Unwatermarked Gummed coated stamp paper >> Currency >> P >> Alpha >> G >>