The ultimate sēma ‘sign, signal’ for the mutual recognition of Penelope and Odysseus is the immovable bed that the king had made to be shared with the queen. Within the space of the lines demarcated by O.23.107–230, the noun sēma recurs at O.23.110, O.23.188, O.23.202, O.23.206, O.23.225. The mutual recognition is confirmed by the verb anagignōskein ‘recognize’, when Penelope at long last overtly recognizes Odysseus at O.23.206.