Proper and Efficient Treatment of Anaphora and Long-Distance Dependency in Context-Free Grammar: An Experiment with Medical Text. - Wailok Tam; Kôiti Hasida; Yusuke Matsubara 001; Eiji Aramaki; Mai Miyabe; Motoyuki Takaai; Hirosi Uozaki (NLPHealthcare@IJCNLP, 2013)