*** Guide-to-Links ***
OT
OT is used for a few verbs like "last" which can take time
expressions as objects:
+-----OT----+
| +--ND-+
| | |
It lasted five years
?I've been working on this five years
*It lasted five books
(Constructions like the second above are sometimes seen; we
disallow them.) In questions, the object of such verbs may be
fronted; in such cases, BT is used. In such cases, the phrase
"how many" must precede the noun. This is analagous to an
ordinary "how many" object-type question, like "how many dogs
did you chase". (See "EAh".) BT is analogous to the usual B; TQ
is analogous to Dmc.
+-----BT----+
+-H--+-TQ-+ |
| | | |
How many years did it last
Thus we give "many" "H- & TQ+"; we give "years.i" "TQ- & BT+".
Grammar Documentation Page.