Q: Does "When YouTube was launched in 2005, it was possible to upload long videos, but a ten-minute limit was introduced in March 2006 after YouTube found that the majority of videos exceeding this length were unauthorized uploads of television shows and films." provide a valid answer to "in 2006 Youtube found that the majority of longer videos were what?"?
A: yes

Q: Does "There is also the theory that there was an Achaean ethnos that migrated from Asia minor to lower Thessaly prior to 2000 BC." provide a valid answer to "Where was this origin of this redefinition ?"?
A: no

Q: Does "A gramophone record (phonograph record in American English) or vinyl record, commonly known as a "record", is an analogue sound storage medium in the form of a flat polyvinyl chloride (previously shellac) disc with an inscribed, modulated spiral groove." provide a valid answer to "What is a gramophone or 'vinyl' record?"?
A: yes

Q: Does "Many hours of exposure in the camera were required, making bitumen impractical for ordinary photography, but from the 1850s to the 1920s it was in common use as a photoresist in the production of printing plates for various photomechanical printing processes.[not in citation given]" provide a valid answer to "Exposure to what natural element was necessary for early photographic plates?"?
A:
no