Syntax for Adding Values to an existing EL Expression

Summary

Syntax for Adding Values to an existing EL Expression

Content

We're using the EL expression below to hide the item-level comment bubbles (we only use the section comment fields). We started using this EL Expression last year, so it includes the name of last year's document name in the expression.  

#{attrs.uiSettings['pCShowEmpCmt'] and !attrs.uiSettings['pShowOneSetOfComment'] and (attrs.compStyle == 'OVERALL' or pageFlowScope.pCustomaryName != '2018 Performance Evaluation')}

For this year, we need to add our 2019 document name to this expression - so that both documents don't show the item-level comment bubbles - but I don't know how to do that.  Can anyone give me guidance on what the syntax would be to add a second document name to the expression?