Question: What is the rebranded name of the racing series now that was won in 2016 by the Prema Powerteam?

full_context: Document 1: 2014 FIA Formula 3 European Championship: The 2014 FIA Formula 3 European Championship was a multi-event motor racing championship for single-seat open wheel formula racing cars that held across Europe. The championship featured drivers competing in two-litre Formula Three racing cars built by Italian constructor Dallara which conformed to the technical regulations, or formula, for the championship. It was the third edition of the FIA Formula 3 European Championship. Raffaele Marciello was the reigning drivers' champion, but he did not defend his title as he stepped up to the GP2 Series. His team, Prema Powerteam represented in the Teams' championship by Esteban Ocon and Antonio Fuoco, defended their Teams' title.
Document 2: 2016 GP3 Series: The 2016 GP3 Series season was the seventh season of the GP3 Series, a motor racing feeder series that runs in support of the 2016 FIA Formula One World Championship and sister series GP2. In keeping with the series' philosophy of updating its technical regulations every three years, the Dallara GP3/13 chassis introduced in the 2013 season was discontinued and Dallara supplied all teams with a new model known as the GP3/16, which are using until the next cycle begins in 2019.
Document 3: Prema Powerteam: Prema Powerteam (competing as Prema Racing in the FIA Formula 2 Championship) is a motorsport team from Italy. It mainly operates in the FIA Formula 3 European Championship as well as various junior championships. The team was founded in 1984. Also this team was a part of Toyota Driver Programme. Currently the team has strong ties with Mercedes and Ferrari, running many of the current Ferrari Driver Academy drivers. Its most recent success is winning the GP2 Drivers' title with Pierre Gasly and Teams' championship.
Document 4: 2015 GP3 Series: The 2015 GP3 Series was the sixth season of the GP3 Series, a motor racing feeder series that was run in support of the FIA Formula One World Championship and sister series GP2. Thirty-one drivers represented eight teams over the course of the season's nine rounds, starting in Spain on 9 May and ending in Abu Dhabi on 29 November. It was the final season for the Dallara GP3/13-AER P57 V6 chassis and engine package that debuted in 2013. A new Dallara-built chassis was introduced for 2016 along with a Mecachrome normally-aspirated V6 engine.
Document 5: 2017 GP3 Series: The 2017 GP3 Series is the eighth season of the GP3 Series, a motor racing feeder series that runs in support of the 2017 FIA Formula One World Championship and sister series Formula 2.
Document 6: Pierre Gasly: Pierre Gasly (born 7 February 1996 in Rouen) is a French formula racing driver, who was the 2014 Formula Renault 3.5 Series runner-up and the 2016 GP2 Series champion. He drives a Honda-powered car for Team Mugen in the 2017 Super Formula Championship. He will make his Formula One début at the 2017 Malaysian Grand Prix.
Document 7: Toyota Racing: Panasonic Toyota Racing was a Formula One team owned by Japanese car manufacturer Toyota and based in Cologne, Germany. Toyota announced their plans to participate in F1 in 1999, and after extensive testing with their initial car, dubbed the TF101, the team made their debut in 2002. The new team grew from Toyota's long-standing Toyota Motorsport GmbH organisation, which had previously competed in the World Rally Championship and the 24 Hours of Le Mans. Despite a point in their first-ever race, Panasonic Toyota Racing never won a Grand Prix, their best finish being 2nd position, which they achieved five times – in 2005, 2008 and 2009.
Document 8: Scuderia Ferrari: Scuderia Ferrari S.p.A. competing as Scuderia Ferrari (] ) is the official name of the racing division of luxury Italian auto manufacturer, Ferrari, and competes in Formula One racing. The team is also nicknamed "The Prancing Horse", with reference to their logo. It is the oldest surviving and most successful Formula One team, having competed in every world championship since the 1950 Formula One season.
Document 9: Antonio Giovinazzi: Antonio Giovinazzi (born 14 December 1993) is an Italian racing driver. He was the 2015 FIA European Formula 3 Championship runner-up and raced with Prema in the 2016 International GP2 Series, finishing in second place with five wins and eight overall podiums. Giovinazzi has been chosen by Scuderia Ferrari as their FIA Formula 1 third and reserve driver for the 2017 season. He made his Formula One Grand Prix debut for Sauber at the 2017 Australian Grand Prix, replacing Pascal Wehrlein. He also replaced Wehrlein at the following Chinese Grand Prix as Wehrlein continued his recovery.
Document 10: 2016 GP2 Series: The 2016 GP2 Series season was the twelfth season of the GP2 Series, a motor racing feeder series that was run in support of the 2016 FIA Formula One World Championship. It was the final season run under the "GP2 Series" name, with the championship being rebranded as the FIA Formula 2 Championship from 2017.
Document 11: Forti: Forti Corse, commonly known as Forti, was an Italian motor racing team chiefly known for its brief and unsuccessful involvement in Formula One in the mid-1990s. It was established in the late 1970s and competed in lower formulae for two decades. The team's successes during this period included four Drivers' Championships in Italian Formula Three during the 1980s, and race wins in the International Formula 3000 championship, in which it competed from 1987 to 1994. From 1992, team co-founder Guido Forti developed a relationship with the wealthy Brazilian businessman Abílio dos Santos Diniz that gave Diniz's racing driver son, Pedro, a permanent seat in the team and the outfit a sufficiently high budget to consider entering Formula One.
Document 12: 2018 GP3 Series: The 2018 GP3 Series is the ninth and final season of the GP3 Series, a motor racing feeder series that runs in support of the 2018 FIA Formula One World Championship and sister series Formula 2. The series will merge with the FIA Formula 3 European Championship in 2019.
Document 13: GP2 Series: The GP2 Series was a form of open wheel motor racing introduced in 2005 following the discontinuation of the long-term Formula One feeder series, Formula 3000. The GP2 format was conceived by Bernie Ecclestone and Flavio Briatore, while Ecclestone also has the rights to the name GP1. In 2010, the GP3 Series class was launched, as a feeder class for the GP2 series. In 2017, the series was rebranded as the FIA Formula 2 Championship.
Document 14: 2015 GP2 Series: The 2015 GP2 Series season was the eleventh GP2 Series season, a championship for open-wheel racing cars run as a support series to the 2015 Formula One World Championship. Twenty-six drivers representing thirteen teams raced over eleven rounds, starting in Bahrain on 18 April and finishing in Abu Dhabi on 29 November.
Document 15: AF Corse: AF Corse is an Italian auto racing team founded by former racing driver Amato Ferrari in 1995 in Piacenza. Strongly linked to the Maserati and Ferrari brands, AF Corse currently competes in the FIA World Endurance Championship, European Le Mans Series, Asian Le Mans Series, and International GT Open, and are four-time champions of the GT2 class of the former FIA GT Championship. The team has also entered cars under Advanced Engineering, AT Racing, Pecom Racing, Spirit of Race and 8Star Motorsports, and in association with Michael Waltrip Racing (AF Waltrip).
ground_truth: FIA Formula 2 Championship