Input DataFrame: rowsCount = 7, columnsCount = 5

name		age	city	weight	isHappy
firstName	lastName
Alice	Cooper	15	London	54	true
Bob	Dylan	45	Dubai	87	true
Charlie	Daniels	20	Moscow	null	false
Charlie	Chaplin	40	Milan	null	true
Bob	Marley	30	Tokyo	68	true
Alice	Wolf	20	null	55	false
Charlie	Byrd	30	Moscow	90	true

Output DataFrame: rowsCount = 7, columnsCount = 5

year of birth	is adult	last name length	full name	city
2006	false	6	Alice Cooper	London
1976	true	5	Bob Dylan	Dubai
2001	true	7	Charlie Daniels	Moscow
1981	true	7	Charlie Chaplin	Milan
1991	true	6	Bob Marley	Tokyo
2001	true	4	Alice Wolf	null
1991	true	4	Charlie Byrd	Moscow