Final answer:
Joseph became well known for his ability to interpret dreams in prison.
Step-by-step explanation:
In prison, Joseph became well-known for his ability to interpret dreams.
One example of this is when he interprets the dreams of two of his fellow prisoners - the cupbearer and the baker. Joseph correctly interpreted the cupbearer's dream to mean that he would be restored to his position, and the baker's dream to mean that he would be executed.
This talent for dream interpretation eventually led Joseph to interpret Pharaoh's dreams and gain his release from prison, becoming a trusted advisor and eventually the second-in-command of Egypt.