send message to mom and my sister's that i will be late
[IN:SEND_MESSAGE send message to [SL:RECIPIENT [IN:GET_CONTACT [SL:TYPE_RELATION mom ] ] ] and [SL:RECIPIENT [IN:GET_CONTACT [SL:CONTACT_RELATED my ] [SL:TYPE_RELATION sister ] ] ] 's that [SL:CONTENT_EXACT i will be late ] ]