glp_person: Thomas Carolus (Thom) de Graaf
person_firstname: Thomas Carolus (Thom)
person_lastname: de Graaf
person_birthplace: Amsterdam
person_occupation_all: Employed: professional (accountant, architect, lawyer, medical doctor etc.)|Employed: top management / director / CEO|Education: university professor|Full-time politician (paid by party organisation, parliament, government; think tanks; living of politics)
person_office_position_2: party leader in the upper house