A subscription may be denied.Logical formLearned from2 sentences. An element may specify a (subscription authorization decision) that something-is-the-case.Logical formLearned from2 sentences. A (replay subscription) may be created.Logical formLearned from2 sentences. A notification may be sent over a (replay subscription).Logical formLearned from2 sentences. A subscription may provide replay of notifications.Logical formLearned from2 sentences. A replay of notifications may be specified by includding a parameter to a (subscription command).Logical formLearned from2 sentences. A content may pertain-to a subscription.Logical formLearned from2 sentences. Subscriptions may be stored.Logical formLearned from2 sentences. A (notification subscription) may be doed.Logical formLearned from2 sentences. A subscription can be to operatorxyx.com.Logical formLearned from2 sentences. A (subscription profile) may pertain-to a user.Logical formLearned from2 sentences. Properties may include a (subscription information).Logical formLearned from2 sentences. A subscription can be on a male.Logical formLearned from2 sentences. A watcher may do a subscription to a (presence information).Logical formLearned from2 sentences. A subscription may originate in a user.Logical formLearned from2 sentences.