UUIDs for Nano 33 BLE Sense sensors

Other Hardware Sensors
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Writing a sketch for the Arduino Nano 33 BLE Sense using ArduinoBLE.h library I have used the UUID for the ledService as both "180A" and "19B10000-E8F2-537E-4F6C-D104768A1214" and switchCharacteristic as "2A57" and "19B10000-E8F2-537E-4F6C-D104768A1214". Both the long and short UUIDs work. What is the reationship between the short and long UUID's. And can someone supply a list of all the UUID's for the sensors on the Arduino Nano 33 BLE Sense, preferably the short ones.

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