sheeper

local function findShears()

    for i = 1, 16 do

        turtle.select(i)
        local item = turtle.getItemDetail()

        if item and item.name == "minecraft:shears" then

            return true

        end
    end
end

while true do

    if findShears() then

        local state;

        repeat

            turtle.place()

            sleep(1)

            state = turtle.getItemDetail()

        until (not state) or (state.name ~= "minecraft:shears")

        for i = 1, 16 do

            turtle.select(i)
            local item = turtle.getItemDetail()

            if item and item.name:match('wool$') then

                turtle.dropDown()

            end
        end

        sleep(1)

    else

        turtle.turnRight()
        turtle.turnRight()
        turtle.suck()
        turtle.turnRight()
        turtle.turnRight()

        sleep(2)

    end
end