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Because a starter application can consume or produce events only in connection with one topic, two applications must be created. 

## 6.10.5 Mapping the received events to the output required 

To have a level of standardization it is recommended to follow a structure and combine the information from the product and price-events into one structure to insert it into the Database. 

The common denominator between the price and the product information is the part-number. See Figure 6-299 on page 378. 

