sentence: Katrina passed on all their experience to Patricia, because 
complete: Patricia had chosen to be their student.

sentence: Matthew carried a knife with them for protection but Benjamin carried a gun. 
complete: Benjamin shot the mugger who assualted them.

sentence: She preferred brushing her teeth with the manual toothbrush rather than the electric toothbrush because the 
complete:
electric toothbrush was advanced for her.