Question: Who has won most national championships college football?

Disambiguated questions and answers:
context: No context provided
question: Who claims to have won most national championships in college football?
short_answers: Princeton

context: No context provided
question: Who has won the most national championships in college football based on College Football Data Warehouse?
short_answers: Princeton

context: The following table contains the national championships that have been recognized by the final AP or Coaches Poll. Originally both the AP and Coaches poll champions were crowned after the regular season, but since 1968 and 1974, respectively, both polls crown their champions after the bowl games are completed. The BCS champion was automatically awarded the Coaches Poll championship. Of the current 120+ Football Bowl Subdivision (FBS, formerly Division I-A) schools, only 30 have won at least a share of a national title by the AP or Coaches poll. Of these 30 teams, only 19 teams have won multiple titles. Of the 19 teams, only 7 have won five or more national titles: Alabama, Notre Dame, Oklahoma, USC, Miami (FL), Nebraska, and Ohio State. The years listed in the table below indicate a national championship selection by the AP or Coaches Poll. The selections are noted with (AP) or (Coaches) when a national champion selection differed between the two polls for that particular season, which has occurred in twelve different seasons (including 2004, for which the coaches selection was rescinded) since the polls first came to coexist in 1950.
question: Who has won the most national championships in college football during the Poll Era?
short_answers: Alabama
wikipage: College football national championships in NCAA Division I FBS ...

context: The following table contains the national championships that have been recognized by the final AP or Coaches Poll. Originally both the AP and Coaches poll champions were crowned after the regular season, but since 1968 and 1974, respectively, both polls crown their champions after the bowl games are completed. The BCS champion was automatically awarded the Coaches Poll championship. Of the current 120+ Football Bowl Subdivision (FBS, formerly Division I-A) schools, only 30 have won at least a share of a national title by the AP or Coaches poll. Of these 30 teams, only 19 teams have won multiple titles. Of the 19 teams, only 7 have won five or more national titles: Alabama, Notre Dame, Oklahoma, USC, Miami (FL), Nebraska, and Ohio State. The years listed in the table below indicate a national championship selection by the AP or Coaches Poll. The selections are noted with (AP) or (Coaches) when a national champion selection differed between the two polls for that particular season, which has occurred in twelve different seasons (including 2004, for which the coaches selection was rescinded) since the polls first came to coexist in 1950.
question: Who has won the most BCS national championships in college football?
short_answers: Alabama
wikipage: College football national championships in NCAA Division I FBS ...

context: The following table contains the national championships that have been recognized by the final AP or Coaches Poll. Originally both the AP and Coaches poll champions were crowned after the regular season, but since 1968 and 1974, respectively, both polls crown their champions after the bowl games are completed. The BCS champion was automatically awarded the Coaches Poll championship. Of the current 120+ Football Bowl Subdivision (FBS, formerly Division I-A) schools, only 30 have won at least a share of a national title by the AP or Coaches poll. Of these 30 teams, only 19 teams have won multiple titles. Of the 19 teams, only 7 have won five or more national titles: Alabama, Notre Dame, Oklahoma, USC, Miami (FL), Nebraska, and Ohio State. The years listed in the table below indicate a national championship selection by the AP or Coaches Poll. The selections are noted with (AP) or (Coaches) when a national champion selection differed between the two polls for that particular season, which has occurred in twelve different seasons (including 2004, for which the coaches selection was rescinded) since the polls first came to coexist in 1950.
question: Who has won the most CFP national championships in college football?
short_answers: Alabama and Clemson

Alabama

Clemson
wikipage: College football national championships in NCAA Division I FBS ...

Long answers:
long_answer: According to the College Football Data Warehouse, Princeton has won the most national championships in college football. During the Poll Era, Alabama won the most  as well as the most BCS national championships. Alabama and Clemson have won the most CFP national championships.