removing a multislot variable in JESS -

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I have a deftemplate in which JESS has a multisplot and if the rule is removed, then I use a variable in the multiplex Want to remove For example: 

  (deftemplate person (name of slot) (Multistolate friend)) (emphasis (person (name John) (friend Jimmy Joe Jessica)))

Now I want to remove Jimmy from the friends slot.

Thank you very much

I have made some mistake in your question assuming that the template name is person .

This rule ends with all the friends of all individuals. 

  (reject Kilmimmy? P & lt; - (person (friend $? One jimmy $? B)) => (modify? P (friends ($ $? A $ ? B))))

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