group_session	player_1_id	player_2_id	player_3_id	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_3_paddle_position_x	player_3_paddle_position_y	ai_paddle_position_x	ai_paddle_position_y	team_score	ai_score