In this situation, can you make a U-turn at the intersection?

In this situation, traffic at the intersection is opened by a green light on the S-3 directional signal. According to § 87 para. 2, the P-8b directional arrow on the far left lane, which allows for a left turn, also indicates permission to perform a U-turn (unless prohibited by a B-23 sign, which is not present here). Although the S-3 signal basically indicates a specific direction, in combination with the horizontal markings and the absence of a prohibition, a U-turn is permitted at this location.