[Lua] Computercraft Base Control

term.clear()
term.setCursorPos(1,1)

print("Base Control")
term.setCursorPos(1,2)
print("Version 1.0")
term.setCursorPos(1,4)
sleep(1)
print("What would you like me to Help with?")
term.setCursorPos(1,6)
sleep(1)
print("Type Farm to control the Farms")
term.setCursorPos(1,7)
sleep(1)
print("Type Power to control the Power")

input = read()

farm = "farm"
power = "power"

if input == (farm) then
term.clear()
term.setCursorPos(1,1)
print("Do You want to turn the Farms on or off?")

input = read()

on = "on"
off = "off"

if input == (off) then
print("Farms Turning Off")
redstone.setOutput("back", true)
sleep(3)
os.reboot()
end

if input == (on) then
print("Farms Turning On")
redstone.setOutput("back", false)
sleep(3)
os.reboot()
end
end

if input == (power) then
term.clear()
term.setCursorPos(1,1)
print("Do you want to turn the power on or off?")

input = read()

on = "on"
off = "off"

if input == (on) then
print("Power is going on!")
redstone.setOutput("top", false)
sleep(3)
os.reboot()
end

if input == (off) then
print("Power turning of!")
redstone.setOutput("top", true)
sleep(3)
os.reboot()
end
end