return { main = function(frame)

	local args = require('Module:Arguments').getArgs(frame)

	local output = {}



	for k, v in pairs(args) do

		if (type(k) == "string") and ((v or "") ~= "") and (k:sub(0,5) == "start") and tonumber(k:sub(6,-1)) then

			num = tonumber(k:sub(6,-1))

			if num and num > 0 then

				e = args"end"..num or ""

				if e:sub(0,-3) == v:sub(0,-3) then

					e = e:sub(-2,-1)

				end

				outputnum = v..(e~="" and "–"..e or "")

			end

		end

	end

	

	s = (args.start or args1 or "")

	if (s ~= "") then

		e = args"end" or args2 or ""

		if e:sub(0,-3) == s:sub(0,-3) then

			e = e:sub(-2,-1)

		end

		table.insert(output, 1, s..(e~="" and "–"..e or ""))

	end



	return table.concat(output, ", ")

end }