A functionality may be provided by operation.Logical formLearned from2 sentences. Functionality can be specific to (printing solutions).Logical formLearned from2 sentences. Functionalities may pertain-to a (header parsing).Logical formLearned from2 sentences. A functionality can be necessary for achieving reliability.Logical formLearned from2 sentences. A (text functionality) can be rich.Logical formLearned from2 sentences. Implementors of (mail systems) may want (text functionality).Logical formLearned from2 sentences. Some functionality may be provided by some means.Logical formLearned from2 sentences. An addition of functionality can be easy.Logical formLearned from2 sentences. A (functionality definition) may pertain-to a document.Logical formLearned from2 sentences. A framework may pertain-to a functionality.Logical formLearned from2 sentences. Frameworks can be for describbing functionality.Logical formLearned from2 sentences. A functionality may require an exchange of (protocol messages).Logical formLearned from2 sentences. A functionality may be specified within a (protocol instantiation document).Logical formLearned from2 sentences. A (functionality section) can be within a (building block document).Logical formLearned from2 sentences. Functionality can be present within (building blocks).Logical formLearned from2 sentences.