Natural Language processing for getting qualitative info
I have a requirement for which I do not know if NL can do it. Plz advise.
 
My requirement is to scan a sentence in english language and figure out some qualitative info about it. Such as , what are the subjects , nouns in the sentence and what is said about them is a descriptive , suggestive  or does it affects positively or negatively. 

As an example, lets say I have a Fan page in facebook , and someone posts a post on my wall. I need to know if the post says something good or bad about me and accordingly I can map it to a perception scale from , say -10 to +10. 

Can something like this be done with with Natural language processing toolkits?
If no, then what is the way.

Thanks in advance
Shyam 
Natural Language processing for getting qualitative info
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I have a requirement for which I do not know if NL can do it. Plz advise.
 
My requirement is to scan a sentence in english language and figure out some qualitative info about it. Such as , what are the subjects , nouns in the sentence and what is said about them is a descriptive , suggestive  or does it affects positively or negatively. 

As an example, lets say I have a Fan page in facebook , and someone posts a post on my wall. I need to know if the post says something good or bad about me and accordingly I can map it to a perception scale from , say -10 to +10. 

Can something like this be done with with Natural language processing toolkits?
If no, then what is the way.

Thanks in advance
Shyam 