How to extract certain string from the Description field and set the string in another field

How to extract certain string from the Description field and set the string in another field

Hi all,

I am new to ME and my vendor had set up ME service desk to receive email from another system and then automatically create a request/ticket.

I wanted to automatically extract certain information from the email and populate a field in the request when ME received an email. The value is dynamic but it will always be the next line after certain sentence. Below is an illustration of what I wanted to achieve.

Sample Email Content 1:

This is an email from xxxxxx.
Priority : High
Trigger category Level 2
UC: 12-1 Hardware failure
Top 10 xxxxxx

Sample Email Content 2:

This is an email from xxxxxx.
Priority : High
Asset: XYZ
Trigger category Level 6
CR: 12-1 Software failure

The system is set up such that the field Description contains the whole email content.

For the first email above, I wanted to extract the sentence "UC: 12-1 Hardware failure" and set the value of the field Category with this sentence.
For the 2nd email above, I wanted to extract the sentence "CR: 12-1 Software failure" and set the value of the field Category with this sentence.
Hence, the sentence that I wanted to extract is always after the sentence that starts with "Trigger category Level". This sentence line number will differ from each email received.

How can I achieve this? 

Thanks in advance.

Cheers!

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