Score extraction from mysql database in c#

i want to write a program that extract score of sentence from mysql database that decide that this sentence is positive or negative.

Example
Sentence "i love my country"

Mysql Database

               Word      PosScore       NegScore    

               love      0.858          0.262    
               country   0.584          0.526

So At end the program tell me Total Score and tell that this is positive Sentence
Thanks in Advance