UnboundLocalError: local variable 'full_token' referenced before assignment

[rumiwarmi]

This error occurs when running evaluate_summary.py without the optionnal part for one file with 3 summaries (data/input_docs/file_1.txt and data/summaries/summary_1.txt, data/summaries/summary_2.txt, data/summaries/summary_3.txt). My text is smaller than 15 sentences.