Subscription may be moderated.Logical formLearned from2 sentences. A total cost may pertain-to subscriptions.Logical formLearned from2 sentences. A cost can be for a (library subscription).Logical formLearned from2 sentences. (Paper subscriptions) may be cancelled.Logical formLearned from2 sentences. An (e-mail subscription service) may provide access to estimates.Logical formLearned from2 sentences. A (print subscription) may be retained.Logical formLearned from2 sentences. Revenue may be derived from subscriptions.Logical formLearned from2 sentences. Some features may require a subscription.Logical formLearned from2 sentences. Subscription may be approved by (list owner).Logical formLearned from2 sentences. Subscriptions can be automated.Logical formLearned from2 sentences. A (subscription fee) can be premium.Logical formLearned from2 sentences. Subscriptions may be provided as a benefit of membership to (section members).Logical formLearned from2 sentences. Persons may have a paid subscription.Logical formLearned from2 sentences. Services can be available through subscriptions.Logical formLearned from2 sentences. Non-members can be interested in subscriptions.Logical formLearned from2 sentences.