Can anybody translate this RBLX Lua into Buildism Lua?

[Login]

local words = {"Truth", "Cows", "Buildism", "Login"}
while true do
local randomword = words[math.random(1,#words)]
print(randomword)
m = Instance.new("Message",Workspace)
m.Text = randomword
sleep(5)
m:Remove()
end

I can't quite get the message. Instead, make it so it appears on the chat as a chatted message.

[Micky]

i dont know how to translate the OnChatted Function into this Lua :/, i think there isnt an OnChatted Funtion here yet!