Question: what type of rock dominates the earth's surface
[{'answer': 'sedimentary rock', 'provenance': [{'wikipedia_id': '44412', 'title': 'Sedimentary rock', 'start_paragraph_id': 1, 'start_character': 360, 'end_paragraph_id': 1, 'end_character': 376, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Sedimentary', 'provenance': [{'wikipedia_id': '44412', 'title': 'Sedimentary rock', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'sedimentary', 'provenance': [{'wikipedia_id': '44412', 'title': 'Sedimentary rock', 'start_paragraph_id': 1, 'start_character': 360, 'end_paragraph_id': 1, 'end_character': 371, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44412', 'title': 'Sedimentary rock', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 753, 'bleu_score': 0.983537688954433, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7557809179038984533}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44412', 'title': 'Sedimentary rock', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 733, 'bleu_score': 0.626085392265817, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7557809179038984533}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '181897', 'title': 'Cliff', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['In geography and geology, a cliff is a vertical, or nearly vertical, rock exposure. Cliffs are formed as erosion landforms by the processes of weathering and erosion. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually formed by rock that is resistant to weathering and erosion. Sedimentary rocks most likely to form cliffs include sandstone, limestone, chalk, and dolomite. Igneous rocks such as granite and basalt also often form cliffs. An escarpment (or scarp) is a type of', 'posure. Cliffs are formed as erosion landforms by the processes of weathering and erosion. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually formed by rock that is resistant to weathering and erosion. Sedimentary rocks most likely to form cliffs include sandstone, limestone, chalk, and dolomite. Igneous rocks such as granite and basalt als']}}]}]