Context: Alexander Graham Bell (March 3, 1847 – August 2, 1922) was a Scottish-born[N 3] scientist, inventor, engineer and innovator who is credited with patenting the first practical telephone.

Question: What is Bell most famous for inventing?
Answer: telephone

Question: What year did Bell die?
Answer: 1922

Question: What was special about his telephone?
Answer: practical

Question: What is Bell's full name?
Answer: Alexander Graham Bell

Question: What is Bell famous for inventing?
Answer: telephone