local p = {}

local error = require( 'Module:Error' )

local origArgs



function p.symbol(frame)

	-- For calling from #invoke.

	local pframe = frame:getParent()

	local args = pframe.args

	time1='' if (args1 and args1 ~= '') then time1 = string.gsub(args1 , "%s$", "") else return error.error{ 'can not read time' } end

	type1='' if (args2 and args2 ~= '') then type1 = string.gsub(args2 , "%s$", "") else return error.error{ 'unknow type' } end

	if(type1 == '0' or type1 == '0')then

		if(time1 == '0' or time1 == '1ns' or time1 == '1µs' or time1 == '1ms' or time1 == '1s' or time1 == '10s' or time1 == '1min' or time1 == '10min' or time1 == '1hr' or time1 == '10hr')then

			return '-'

		end

		if(time1 == '1day')then

			return 'V'

		end

		if(time1 == '10day' or time1 == '1mon')then

			return 'I'

		end

		if(time1 == '100day' or time1 == '10mon')then

			return 'B'

		end

		if(time1 == '10y' or time1 == '10a' or time1 == '100y' or time1 == '100a' or time1 == '1ka')then

			return 'G'

		end

		if(time1 == '10ka' or time1 == '100ka' or time1 == '1Ma' or time1 == '10Ma' or time1 == '100Ma')then

			return 'Y'

		end

		if(time1 == '103Ma')then

			return 'O'

		end

		if(time1 == '700Ma' or time1 == '1Ga' or time1 == '10Ga' or time1 == '14Ga' or time1 == '100Ga' or time1 == '1Ta')then

			return 'O'

		end

		if(time1 == 'Stable')then

			return 'R'

		end

	end

	if(type1 == '1' or type1 == '1')then

		if(time1 == '0' or time1 == '1ns' or time1 == '1µs' or time1 == '1ms' or time1 == '1s' or time1 == '10s' or time1 == '1min' or time1 == '10min' or time1 == '1hr' or time1 == '10hr'

			or time1 == '1day' or time1 == '10day' or time1 == '1mon' or time1 == '100day' or time1 == '10mon')then

			return '-'

		end

		if(time1 == '1y' or time1 == '1a')then

			return '0'

		end

		if(time1 == '10y' or time1 == '10a')then

			return '1'

		end

		if(time1 == '100y' or time1 == '100a')then

			return '2'

		end

		if(time1 == '1ka')then

			return '3'

		end

		if(time1 == '10ka')then

			return '4'

		end

		if(time1 == '100ka')then

			return '5'

		end

		if(time1 == '1Ma')then

			return '6'

		end

		if(time1 == '10Ma' or time1 == '100Ma')then

			return '7'

		end

		if(time1 == '103Ma')then

			return '8'

		end

		if(time1 == '700Ma' or time1 == '1Ga' or time1 == '10Ga' or time1 == '14Ga' or time1 == '100Ga' or time1 == '1Ta')then

			return '9'

		end

		if(time1 == 'Stable')then

			return 'R'

		end

	end

	return time_value

end