Read the following passage and answer if the question is true or false.
Passage: In baseball, to tag up is for a baserunner to retouch or remain on their starting base (the time-of-pitch base) until (after) the ball either lands in fair territory or is first touched by a fielder. By rule, baserunners must tag up when a fly ball is caught in flight by a fielder. After a legal tag up, runners are free to attempt to advance, even if the ball was caught in foul territory. On long fly ball outs, runners can often gain a base; when a runner scores by these means, this is called a sacrifice fly. On short fly balls, runners seldom attempt to advance after tagging up, due to the high risk of being thrown out.

Question: can you run on a caught foul ball?

Is the answer True or False? Respond with only "True" or "False" and no additional text.
False. According to the passage, runners cannot advance after tagging up on a foul ball.