|| group_session   || player_1_id   || player_2_id   || player_1_station   || player_2_station   || timestamp_unix   || timestamp_iso8601   || task_started   || seconds   || ball_position_x   || ball_position_y   || player_1_paddle_position_x   || player_1_paddle_position_y   || player_2_paddle_position_x   || player_2_paddle_position_y   || player_1_score   || player_2_score   ||