Question: what condition is associated with the feeling of incomplete evacuation of the bowel
[{'answer': 'Rectal tenesmus', 'provenance': [{'wikipedia_id': '1386072', 'title': 'Rectal tenesmus', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1386072', 'title': 'Rectal tenesmus', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 500, 'bleu_score': 0.8312856043945941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4170503739358650122}, 'section': 'Section::::Abstract.'}]}]