[Corpora-List] tools for QLF?

[Mark A. Greenwood]

Hi,
	You might be interested in the BuChart parser which is shipped with the 
GATE framework (http://gate.ac.uk). This produces both syntactic parse 
trees and a simplified QLF representation. It also includes grammar 
rules specifically designed to handle questions (although I can't 
remember exactly how it deals with why questions).

For example parsing the question "Who wrote Hamlet?" gives the following 
representation:

qvar(e1), qatr(e1,name), person(e1), lsubj(e2,e1), write(e2), 
time(e2,past), aspect(e2,simple), voice(e2,active), lobj(e2,e3), 
name(e3,'Hamlet')

Here the qvar represents the entity sought by the question and you can 
see that entity e1 is a person, so the question is looking for a person 
as an answer.

Hope this is helpful,

Mark A. Greenwood


Suzan Verberne wrote:
> Hi all,
> 
> I am a PhD student working on a question answering approach for 
> why-questions.
> When looking for a semantic representation formalism, I ran into QLF 
> (Alshawi, 1990). It would be great to have a tool for creating a QLF 
> from a syntactic parse tree. Unfortunately, I cannot find any tools that 
> can do this.
> 
> Does anyone know of a tool for creating QLFs?
> Or does anyone know of any other semantic representation for which tools 
> are available?
> 
> Thank you for your response!
> 
> Suzan Verberne
>