add my mother to the call
[IN:UPDATE_CALL [SL:CONTACT_ADDED [IN:GET_CONTACT [SL:CONTACT_RELATED my ] [SL:TYPE_RELATION mother ] ] ] ]
add my mother to the call
[IN:UPDATE_CALL [SL:CONTACT_ADDED [IN:GET_CONTACT [SL:CONTACT_RELATED my ] [SL:TYPE_RELATION mother ] ] ] ]