started working to let the code work with multiple classifiers
modified the code to accommodate multiple classifiers (SVM, RandomForests,Naive Bayes)
changed to version 1.3.1. The main improvement concerns the  function that replaces the previous version now renamed . The new function reads in a list of entities from a brat standoff file and outputs a list of relations, thus rendering unnecessary to import nltk and parse the iob file. The performances are also improved F1=0.925 (as opposed to a previous value of 0.84). The new implementation also is much closer to the pseudocode contained in the dissertation