Question: Who is the mother of the striker for the Czech First League club that was born on 25th June 1983?
Context: The 2017–18 season is SK Slavia Prague's 25th season in the Czech First League.  The team is competing in Czech First League, the Czech Cup, and the UEFA Champions League. The 2013–14 Czech First League, known as the Gambrinus liga for sponsorship reasons, was the 21st season of the Czech Republic's top-tier football league.  The season began on 19 July 2013 and ended on 31 May 2014.  Sparta Prague won their 36th title on 4 May 2014, after defending champions Plzeň drew against Jablonec.  They ended the season with a Czech league record of 79 points out of a possible 90, winning all of their home games, and losing only one away game and drawing a further four.  Sigma Olomouc and Znojmo were relegated, the latter having played its top flight debut, and the former having played in every Czech first league season since its establishment in 1993. The 2017–18 season is FC Viktoria Plzeň's 25th season in the Czech First League.  The team is competing in Czech First League, the Czech Cup, and the UEFA Europa League group stage. Eva Janko (née Egger) (born 24 January 1945 in Floing, Styria) is a former javelin thrower from Austria.  She is the mother of the Austrian national football team player Marc Janko. Marc Janko (born 25 June 1983) is an Austrian footballer who plays as a striker for Czech First League club Sparta Prague and the Austrian national team. FC Fastav Zlín is a Czech professional football club from Zlín, Moravia.  The professional club has spent a number of seasons in the top league of the country, both the Czechoslovak First League and later the Czech First League.  They currently play in the Czech First League. This is a list of Czech Football League managers.  It includes every manager currently managing a club in the Czech First League and Czech 2.  Liga, in order of the date of their appointment.  The Czech First League and Czech 2.  Liga are the only two fully professional football leagues in the Czech Republic, and consist of 32 clubs in total, 16 from each league. FC Vysočina Jihlava is a football club from Jihlava, Czech Republic, which currently plays in the Czech First League, the top football competition in the Czech Republic.  Jihlava played in the top flight for the first time in its history in the 2005–06 season.  The club has taken part in the Czech 2.  Liga more than 10 times and has also played in the Czech First League. MFK OKD Karviná is a football club located in Karviná, Czech Republic, which plays in the Czech First League.  The club took part in the Czech First League on two occasions in the 1990s, never surviving for more than one season.  It played in the Czech 2.  Liga between 2008 and 2016, when it was promoted to the First League.  The team's colours are green and white. The 2007-08 Czech Cup was the fifteenth season of the Czech Republic's football knockout competition.  AC Sparta Prague were the defending champions.  129 teams from the nine highest leagues (top four levels) participated.  Teams from the Czech First League played their first matches in the second round.  The winner of this cup (or runner-up if the winner qualified for the UEFA Cup or UEFA Champions League via the Czech First League) qualified for the Second Qualifying Round of the UEFA Cup 2008-09.
Answer: Eva Janko