Begginer question about Input

print("Welcome to the game")
input = ""

inv = {"coin", "sword", "armor"}

while imput ~= "exit" do
  print("What do you want to do?")
  input = io.read()
  
  if input == "inspect" then
    print("Youre in a cave. There is an exit.")
  elseif input == "exit" then
    print("You left the cave.")
  elseif input == "inv" then
    for i,v in pairs(inv) do
      print(i,v)
    end
  else
    print("You didnt write a valid command...")
  end
end

input = ""
while input ~= "follow path" do
  print("What do you want to do?")
  input = io.read()
  
  if input == "inspect" then
    print("There is a cave behind you. Youre on a cliff. There is a pathway ahead.")
  elseif input == "follow path" then
    print("You follow the path")
    print("A troll appears wielding an axe")
    print("What do you want to do? (run away, attack)")
    tinput = io.read
    if tinput == "attack" then
      print("You smack with your sword and it falls dead")
    elseif tinput == "run away" then
      etc etc etc..