Are these relationships at ERwin diagram correct?

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I have to create database application called "Club of alpinists". I have 5 entities: Alpinist, who can be a part of a Team which go to a peak, or Ascend alone. Also there is a Peak, which may have a lot of Routes. 6th entity (Membership) is intermediate. I created relationships between these entities. Could you tell me, are this relationships correct, or there are some mistakes?

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