Comparing based on word not capital?

I'm trying to make it compare to a string, and ignore capitals ie:

I LIKE HOTDOGSthen compares to I like hotdogs

and because it's the same words and ignoring upper or lower case it will continue

game.Players.PlayerAdded:connect(function(plr)
	local defined = {}
	plr.Chatted:connect(function(msg)
		if admins[plr.Name] then
			if msg == --[[????]] then --Checks to see if the message is the same word, ignoring capitals completely 
				local target = string.gsub(msg,"Sanic:","")
				if game.Players:FindFirstChild(target) then
					if game.Workspace[target]:FindFirstChild("Humanoid") then
						if game.Workspace[target]:FindFirstChild("Torso") then
							local sclone = script.Sets.Sonic:Clone()
							sclone.Parent = game.Players[target].Character.Torso
							sclone.Enabled = true
						end
					end
				end
			end
		end
	end)
end)