Labels:text | screenshot | display | rectangle | number | font OCR: Step 1. Indexes on "skill" and "city" are used to retrieve qualifying entries. skill 12 city RIC engineer 333 Newark engineer 423 Newark 799 engineer 555 Newark 233 Step 2: An intersection of RIDs is performed, with one RID qualifying. RESULT 423 FIGURE 3. Logic of indexing ANDing for query on Newark-based engineers.