Does the sentence "Modern Greek has, in addition to Standard Modern Greek or Dimotiki, a wide variety of dialects of varying levels of mutual intelligibility, including Cypriot, Pontic, Cappadocian, Griko and Tsakonian (the only surviving representative of ancient Doric Greek)." provide a valid answer to the question "What ancient language is still in use today in some of the minuscule societies in the Grecian world ?"

A: no

Does the sentence "Over time, as real wages rose, parents became able to afford to send their children to school instead of work and as a result child labour declined, both before and after legislation." provide a valid answer to the question "How many children worked?"

A: no

Does the sentence "In Africa, there are various ethnic beers made from sorghum or millet, such as Oshikundu in Namibia and Tella in Ethiopia." provide a valid answer to the question "In what country is the beer Oshikundu produced?"

A: yes

Does the sentence "In 1919, Sir Edward Mellanby incorrectly identified rickets as a vitamin A deficiency because he could cure it in dogs with cod liver oil." provide a valid answer to the question "Which property was vitamin B found to have?"

A:
no