Question: what's the population of earth in 2018
[{'answer': '7.6 billion'}, {'provenance': [{'wikipedia_id': '19017269', 'title': 'World population', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 0.6943776929402701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7577820393521569316}, 'section': 'Section::::Abstract.'}]}]