求高手写代码，附件是数据集。

要求：FLAG= "Yes" , in the followingcases:

(1) TYPE="Vomiting";

(2) TYPE="Retching",and its duration >= 5 minutes ;

(3) TYPE="Retching",and it is preceded or followed by a "Vomiting", and the timebetween "Retching" and "Vomiting" <= 1 minute ;

(4) TYPE="Retching",and it is preceded or followed by other "Retching" events, andEnding time of the last event - Beginning time of the first event >= 5minutes, and the time between any two events <= 1 minute ;

我实在是写不出来了，看过别人写的代码，没看懂，怎么看怎么像是错的。由于是真实的数据，所有要求中的（1）（2）两条就把所有的FLAG都置成yes了，无法根据结果判断（3）（4）是否正确。
所以恳求各位高手有时间的话帮我看看。