 There are some tests that are helpful in distinguishing these two readings. For example, the existential interpretation is upward entailing, meaning that the statement will always remain true if we replace the subject term with a more inclusive term. Consider our examples above. In  (1b),  we can replace “tiger” with “animal” salva veritate, but in  (1a)  we cannot. If “tigers are on the lawn” is true, then “animals are on the lawn” must be true. However, “tigers are striped” is true, yet “animals are striped” is false.  (1a)  does not entail that animals are striped, but  (1b)  entails that animals are on the front lawn (Lawler 1973; Laca 1990; Krifka et al. 1995).