premise: How to become a member of the ymca<br>Visit your local ymca and see if its facilities will meet your needs. Ymca staff take prospective members on guided tours of the site and can answer all membership questions. Services vary from one facility to another, so be sure to ask about programs of special interest to you.
hypothesis: the ymca does not allow anyone to enter that does not have a membership
reason: the ymca staff take prospective members on tours, therefore they do allow people to enter that do not have a membership. The system may have missed this as it assumes i meant they can use the facilities without being a member