Need help with the Automation - While comparing 2 asset objects

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Hi Team,

We are trying to compare 2 asset objects in an IF condition (if either X or Y is not empty) then they need to create a variable. I'm not sure what values to be used in "variable name" and "smart value". 

For one of the similar rule we've been using [object HAVING outboundReferences(key IN ({{issue.Y (CMDB).key}}))] this value, but while comparing 2 of such asset objects what should be the smart variable?

Could you please help me in this regards?

Please check the below screenshot

Thanks in advance