Information about what metadata, or tagging, formats the players understand. FLAC has support for metadata tagging, album cover art, and fast seeking. This is known as a "tag", with the participants "tagging out" and "tagging in". It allows importing/saving, viewing, organizing, tagging, editing, and sharing large numbers of digital images. Quantitative proteomics using stable isotopic tagging is an increasingly useful tool in modern development. Many machine learning methods have also been applied to the problem of POS tagging. They are robust and able to tolerate capture, handling, and tagging extremely well. The software remains highly functional for tagging and organizing music. Hurley was primarily responsible for the tagging and video-sharing aspects of YouTube. It is, however, also possible to bootstrap using "unsupervised" tagging. RFID is used for item level tagging in retail stores. G4S also provides electronic tagging and monitoring of offenders at home or in the community. There are entity tagging and other classifications. As a cowardly manager, Heenan tagged and stomped Dynamite before quickly tagging out to Tama. From IEEE 802.1Q the VLAN with priority tagging is used.