  A document which elaborates opinions and arguments related to the previous
court cases is known as a legal opinion text. Lawyers and legal officials have
to spend considerable effort and time to obtain the required information
manually from those documents when dealing with new legal cases. Hence, it
provides much convenience to those individuals if there is a way to automate
the process of extracting information from legal opinion texts. Party-based
sentiment analysis will play a key role in the automation system by identifying
opinion values with respect to each legal parties in legal texts.
