E = a b 0 0 1 0 0 0 1
{ "s_type": "PointFact", "label": "A", "_CustomLabel": null, "hasCustomLabel": false, "labelId": 0, "point": {"x": -1.66086578, "y": -0.00494432449, "z": -2.17682648}, "normal": {"x": 0.1, "y": 1.2, "z": 0.3} }
{ "pid1": "http://mathhub.info/FrameIT/frameworld?DefaultSituationSpace/SituationTheory1?fact252", "pid2": "http://mathhub.info/FrameIT/frameworld?DefaultSituationSpace/SituationTheory1?fact254", "pid3": "http://mathhub.info/FrameIT/frameworld?DefaultSituationSpace/SituationTheory1?fact256", "s_type": "AngleFact", "label": "∠BDF", "_CustomLabel": null, "is_right_angle": false, "hasCustomLabel": false, "labelId": 0 }
{ "s_type": "LineFact", "pid1": "http://mathhub.info/FrameIT/frameworld?DefaultSituationSpace/SituationTheory1?fact255", "pid2": "http://mathhub.info/FrameIT/frameworld?DefaultSituationSpace/SituationTheory1?fact256", "dir": {"x": 0.1, "y": 1.2, "z": 0.3}, "label": "[EF]", "_CustomLabel": null, "hasCustomLabel": false, "labelId": 0 }
{ "s_type": "RayFact", "pid1": "http://mathhub.info/FrameIT/frameworld?DefaultSituationSpace/SituationTheory1?fact256", "pid2": "http://mathhub.info/FrameIT/frameworld?DefaultSituationSpace/SituationTheory1?fact252", "dir": {"x": 0.1, "y": 1.2, "z": 0.3}, "label": "FB", "_CustomLabel": null, "hasCustomLabel": false, "labelId": 0 }