Grandmother is part of Family. you are likely to find Sibling in/at/on Family. 
you are likely to find Transmission in/at/on Car. Transmission is derived from Mission. Mission is a synonym of Commission. Commission is a type of Command. 
Grandmother --PartOf--> Family <--AtLocation-- Sibling 
Car <--AtLocation-- Transmission --DerivedFrom--> Mission <--Synonym--> Commission --IsA--> Command 