Both calls are 2-part calls.
Hinge The Lock:
Lock The Hinge:
anything The Lock [C3A]: Do the anything call; Lockit.
Lock The anything [C3A]: Lockit; do the anything call.
anything The Top [C4]: Do the anything call; Fan The Top.
Hinge The Cross Lock [C3B]: Hinge; Cross Lockit.
Cross Lock The Hinge [C3B]: Cross Lockit; Hinge.
Note: Snap The Lock [C3A] is a separate call and is not related to anything The Lock.
See also Cross Lockit [C3B].