Mail Filter contains part - seperate by ","?

Hey,
Is it possible to separate words on the mail filter - contains? "," doesn't seem to do it for me. So if subject contains "cat/dog/snake"? Do i have to create 3 different mail filters or can you separate them with ___?
### BEGIN FILTER_ID:127
if header :regex ["subject"] [".*cat,dog,snake"] {
fileinto "Junk";
stop;
}
### END FILTER_ID:127

 

Is this about subject containing cat OR dog OR snake? Then the regexp separator is |. There are regexp test websites, those are very useful to check regexp matches what it is supposed to match.

 

Thank you