Deep Semantics Influences Parsing

The man at one end weighs 150 lb.
The man [who is] at one end [of the lever] ...

The man supports the lever at one end.
* ... the lever [that is] at one end [of the lever]

Both examples fit the pattern:

< object>  AT < location> 

However, in the second case, attaching at one end to the noun phrase would be wrong. Additional semantics is needed.

Rule: an object may not be modified by a location on itself.

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