PP Attachment
- There are also two subnets I didn't tell you about, the PP to NP, and
PP to VP subnets.
- What these do is take input from semantics, and send output to
phrase combination rules.
- If a stored pair is being combined, it will provide the
correct attachment. A pair is like (saw telescope -> instrument) or
(door handle -> PP Mod).
- As you'd expect all the stored ones work.
- However, the semantics of the words are stored hierarchically.
- So, girl and boy are pretty close.
- If I store (saw girl -> instrument) then (saw boy -> instrument)
is invoked.
- By default it attaches the PP to the NP.
- All 7 attachments work correctly though only three are stored.
