NY 54 has a NY14A_S point but no corresponding NY 14A_N point.
Based on signs the northbound routing of NY 54 through Penn Yan is Liberty-Elm-Main, but the southbound routing is Main-Water-Liberty. So, the NY14A_N point should be halfway between Elm and Water, though it'd be tempting to fudge it to Elm to get a graph connection with NY 54A.