Question: Did Cynthia Powell celebrate a silver anniversary with John Lennon?, Answer:No, Description of John Lennon: English singer and songwriter, founding member of the Beatles, Fact1: A silver anniversary takes place during the 25th year of marriage., Fact2: Cynthia Powell married John Lennon in 1962., Fact3: Cynthia Powell and John Lennon got divorced in 1968.
Step1: People have to be married for how many years for them to celebrate a silver anniversary?, Step2: When did Cynthia Powell marry John Lennon?, Step3: When Cynthia Powell divorce John Lennon?, Step4: What is #3 minus #2?, Step5: Is #4 greater than or equal to #1?, Wikipedia page for step 1: Silver anniversary, Wikipedia page for step 2:  Cynthia Lennon, Wikipedia page for step 3: Cynthia Lennon, Wikipedia page for step 4: , Wikipedia page for step 5: , not_definitive_answer: False, incorrect_answer: False