Jennifer is being taught how to play the Mandolin by Erin. 
OPTIONS:
- Jennifer is a Mandolin student.
- Erin is a Mandolin student.
Jennifer is a Mandolin student.

Christine had the worst dandruff the dermatologist Felicia had ever seen, so 
OPTIONS:
- Christine prescribed a medicated shampoo.
- Felicia prescribed a medicated shampoo.
Felicia prescribed a medicated shampoo.

Ian found the camera that Ryan had lost at the beach, so 
OPTIONS:
- Ian felt good about helping out.
- Ryan felt good about helping out.
Ian felt good about helping out.