Question: number of degree of freedom for plane mechanism
[{'answer': 'six', 'provenance': [{'wikipedia_id': '2321587', 'title': 'Degrees of freedom (mechanics)', 'start_paragraph_id': 4, 'start_character': 158, 'end_paragraph_id': 4, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'two', 'provenance': [{'wikipedia_id': '2321587', 'title': 'Degrees of freedom (mechanics)', 'start_paragraph_id': 3, 'start_character': 110, 'end_paragraph_id': 3, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2321587', 'title': 'Degrees of freedom (mechanics)', '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': 14989831170395470030}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2321587', 'title': 'Degrees of freedom (mechanics)', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 174, 'bleu_score': 0.9364250605898111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14989831170395470030}, 'section': 'Section::::Six degrees of freedom (6 DOF).\n'}]}, {'provenance': [{'wikipedia_id': '2321587', 'title': 'Degrees of freedom (mechanics)', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 114, 'bleu_score': 0.8970773746801091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14989831170395470030}, 'section': 'Section::::Motions and dimensions.\n'}]}, {'provenance': [{'wikipedia_id': '26998547', 'title': 'Degrees of freedom (physics and chemistry)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['The location of a particle in three-dimensional space requires three position coordinates. Similarly, the direction and speed at which a particle moves can be described in terms of three velocity components, each in reference to the three dimensions of space. If the time evolution of the system is deterministic, where the state at one instant uniquely determines its past and future position and velocity as a function of time, such a system has six degrees of freedom. If the motion of the particle is constrained to a lower number of dimensions, for example, the particle must move along a wire or on a fixed surface, then the system has fewer than six degrees of freedom. On the other hand, a system with an extended object that can rotate or vibrate can have more than six degrees of freedom.', 'such a system has six degrees of freedom.', 'If the motion of the particle is constrained to a lower number of dimensions, for example, the particle must move along a wire or on a fixed surface, then the system has fewer than six degrees of freedom.']}}]}, {'provenance': [{'wikipedia_id': '2321587', 'title': 'Degrees of freedom (mechanics)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ["An automobile with highly stiff suspension can be considered to be a rigid body traveling on a plane (a flat, two-dimensional space). This body has three independent degrees of freedom consisting of two components of translation and one angle of rotation. Skidding or drifting is a good example of an automobile's three independent degrees of freedom.", 'This body has three independent degrees of freedom consisting of two components of translation and one angle of rotation', "This body has three independent degrees of freedom consisting of two components of translation and one angle of rotation. Skidding or drifting is a good example of an automobile's three independent degrees of freedom."]}}]}]