@anshul2286, time frame doesn't matters, in no case wave 3 can be the shortest one. Now, in ending diagonal w 3 can be short compared to w 1, but it cant be shorter than w5 as w3 is already shorter than w1, which violates the rule. Simply you can put it like this w1>w3>=w5 in which w5 is the shortest (ie contracting ending diagonal). Rare pattern of this is expanding one, for which w1<w3<w5 in which w1 is the shortest. If it does goes beyond these rules, needs to relabel it.