instruction: A line chart for what are the number of the dates of birth of entrepreneurs with investor 'Simon Woodroffe' or 'Peter Jones'?
response: SELECT Date_of_Birth, COUNT(Date_of_Birth) FROM entrepreneur AS T1 JOIN people AS T2 ON T1.People_ID = T2.People_ID WHERE T1.Investor = "Simon Woodroffe" OR T1.Investor = "Peter Jones"