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{"ops":[{"insert":"4. A launch requires a launchpad that hosts it, a launch vehicle (the rocket), and the payload.\n5. For a launch, the date, time and name should be recorded as well as whether it is a crewed\nlaunch or not.\n6. Each launch is performed by a launch vehicle. The serial number for the launch vehicle\nshould be recorded. A launch vehicle can perform multiple launches over time.\n7. Each launch vehicle is of a specific launch vehicle type. The name, maximum thrust and\nwhether it is reusable need to be recorded for the launch vehicle type.\n8. A specific manufacturer makes each launch vehicle type, and a manufacturer can make\nmany different launch vehicle types.\n9. Each launch carries one payload, and a payload is only carried by one launch.\n\u00a0\u00a0Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation, representing these business rules. Your design should be at the logical level \u2013 include surrogate primary key and foreign key fields and remember to remove any many-to-many relationships.\n"}]}

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