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|context> => |context: disease>

supported-ops |disease: 1> => |op: disease-symptoms>
disease-symptoms |disease: 1> => |symptom: a> + |symptom: b> + |symptom: c>

supported-ops |disease: 2> => |op: disease-symptoms>
disease-symptoms |disease: 2> => |symptom: d> + |symptom: e>

supported-ops |disease: 3> => |op: disease-symptoms>
disease-symptoms |disease: 3> => |symptom: f> + |symptom: g> + |symptom: h> + |symptom: i>

supported-ops |disease: 4> => |op: disease-symptoms>
disease-symptoms |disease: 4> => |symptom: j> + |symptom: k> + |symptom: l>

supported-ops |patient: 1> => |op: disease-symptoms>
disease-symptoms |patient: 1> => |symptom: b> + |symptom: h> + |symptom: f> + |symptom: k>
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