Question: who did ireland lose to in world cup 2018
[{'answer': 'Serbia', 'provenance': [{'wikipedia_id': '578510', 'title': 'Republic of Ireland national football team', 'start_paragraph_id': 43, 'start_character': 136, 'end_paragraph_id': 43, 'end_character': 142, 'bleu_score': 1.0, 'section': "Section::::History.:Martin O'Neill and Roy Keane (2013–2018).\n"}]}, {'answer': 'Denmark', 'provenance': [{'wikipedia_id': '578510', 'title': 'Republic of Ireland national football team', 'start_paragraph_id': 25, 'start_character': 294, 'end_paragraph_id': 25, 'end_character': 301, 'bleu_score': 1.0, 'section': 'Section::::History.:Charlton years (1986–1995).\n'}]}]