Setting up email filters; what's the subject line of approval required notifications?

I'd like to set up email filters in Gmail so that I can easily find/track notifications about expense reports submitted by the people I manage. I haven't yet seen one of these notifications so don't know what criteria to use for the filter. Plese assist.
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"[employee name] sent you their [report name] report"
If there are multiple tasks for you to complete, we may send a summary email with the subject line "[# of tasks] items awaiting your action".
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