Question: where are t lymphocytes located in lymph nodes
[{'answer': 'mainly in the paracortex'}, {'provenance': [{'wikipedia_id': '82342', 'title': 'Lymph node', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 544, 'bleu_score': 0.8799758688521461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5165510237476242860}, 'section': 'Section::::Structure.\n'}]}]