In February. Its beautiful up there. Where does it go? What if theres an accident? And that, to me as a security person, spells trouble.
The accident happened last month.
( z0 accident :time ( z1 month :mod ( z2 last ) ) )
(z0 / accident
    :time (z1 / month
              :mod (z2 / last)))
The accident happened last month .
z1 :mod z2
z0 :time z1