Question: who became a leader of the indian national congress
[{'answer': 'Mahatma Gandhi', 'provenance': [{'wikipedia_id': '149333', 'title': 'Indian National Congress', 'start_paragraph_id': 1, 'start_character': 333, 'end_paragraph_id': 1, 'end_character': 347, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '149333', 'title': 'Indian National Congress', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13022703434897866584}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '149333', 'title': 'Indian National Congress', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 567, 'bleu_score': 0.7085977126421571, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13022703434897866584}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '797638', 'title': 'Quit India Movement', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The Quit India Movement, or the August Movement, was a movement launched at the Bombay session of the All-India Congress Committee by Mahatma Gandhi on 8 August 1942, during World War II, demanding an end to British Rule of India.', 'Mahatma Gandhi', 'The Quit India Movement, or the August Movement, was a movement launched at the Bombay session of the All-India Congress Committee by Mahatma Gandhi on 8 August 1942, during World War II, demanding an end to British Rule of India.']}}]}, {'provenance': [{'wikipedia_id': '149333', 'title': 'Indian National Congress', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['From the late 19th century, and especially after 1920, under the leadership of Mahatma Gandhi, Congress became the principal leader of the Indian independence movement.', 'Mahatma Gandhi', 'The Indian National Congress (INC, often called the Congress Party or simply Congress) is a political party in India with widespread roots. Founded in 1885, it was the first modern nationalist movement to emerge in the British Empire in Asia and Africa. From the late 19th century, and especially after 1920, under the leadership of Mahatma Gandhi, Congress became the principal leader of the Indian independence movement. Congress led India to independence from Great Britain, and powerfully influenced other anti-colonial nationalist movements in the British Empire.']}}]}]