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Magic words
Transform
Unify
Taro seems to be happy
1. Taro seems to be happy
2. Taro tries to be happy
In 2, Taro is more active
He is trying to do something.
• It seems Taro is happy.
• Taro seems to be happy.
• Taro isn’t a SEEMER
• It tries Taro is happy.
• ?????????????????????
• Taro tries to be happy
• Taro is actively trying
• He’s a TRYER
Taro seems to be happy.
Move things around
!
• Seems
• is different from tries
• Is different from wants
• Is different from thinks
• Their grammar
• And their meaning
• Is different
Transformational grammar doesn’t
worry too much about that
• TG focuses on Transformations
What about Unification Grammars?
• UGs DON’T have movement
• No movement at all?
• Yes, no movement at all
• At all?
• Yes, at all
So how do UGs handle things?
• Lots of details
• Details about grammar (syntax)
• Details about meaning (semantics)
• Details?
• Yes details
• It sounds bad
• It is
Anything good about Ugs?
• Well, one thing
• What’s that?
• Everything boils down to matching
• Matching, copying, unifying, merging
information
• It’s ALL the same thing
What about Transformations?
• TGs have pattern matching
• And they have movement
• So UGs are simpler in a way
Transform again
Taro seems to be happy
Oh, no! Too much detail!
Transform is better!!
This is simplified!
This is a word!
Taro seems to be happy
Meaning AND grammar
Taro has meaning: Green
Seems has meaning: Orange
To be happy has meaning: purplish
Taro has grammar: it’s a noun
To be happy has grammar:
To be happy: VP [inf]
Seems has grammar: it’s a verb
Seems is a verb that takes a SUBJECT
AND a VP[inf]
AND the SUBJECT of seems
Matches the SUBJECT of VP[inf]
AND the meaning of VP[inf] …
MATCHES inside the meaning of seems
Matching here, matching there
Unify
Transform is better!!
• But what if the sentence is
• Taro tries to be happy
• Transformational grammar has to think about
meaning, too
• You can’t just IGNORE meaning, can you?
Taro tries to be happy
This time the meaning is slightly
different
The subject is a TRYER
NO SEEMER
But there IS a TRYER
How do you explain that!
Unify!
Transform unify
Transform unify
Transform unify
Transform unify
Transform unify
Transform unify

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