tortoise(Any herbivorous terrestrial chelonian reptile of the family Testudinidae, of most warm regions, having a heavy dome-shaped shell and clawed limbs)
book(A collection of leaves of paper, parchment or other material, usually bound or fastened together within covers, containing writing of any type or blank pages for future inscription)
registration obligation(The duty to formally enroll with a government agency or an authority in order to be granted certain rights, particularly trademark or copyright privileges, or the permission to sell and distribute a product)