    Sentence 1: On the other hand, the shared  main entry for watershed has twenty-three  words in CED but 93 in Cobuild . And the  word waterless is a main entry in Cobuild ,  explained in twenty words, whereas in CED  it is naught but a so-called undefined runon  ‘merely mentioned, but not explained  explicitly, as @ sub-entry at water . So CED  enters more items than Cobuild , but  devotes less space to explaining them.    Sentence 2: Cobuild uses more space to  explain items but has fewer entries than  CED.