Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: A woman whose six-year-old son has vanished with her estranged husband has written the little boy an open letter telling him: ‘I love you from the moon and back.' Leyla Dad, 33, has also sent a plea to the public saying, ‘please help me find my baby boy’. Ms Dad - who is Polish and uses her middle name, Paulina - has launched proceedings in the Family Division of the High Court in a bid to trace young Mani. Solicitors representing Ms Dad say Mani disappeared from his home in Kielce, Poland, in January. They think that he is in the UK with his British father Zayn Dean, 47, who is also known as Dholtana Dad.Leyla Dad, 33, has told the public: 'Please help me find my baby boy'She has launched proceedings in High Court in bid to trace Mani, sixSolicitors claim Mani disappeared from home in Poland in JanuaryThey think that he is in the UK with his British father Zayn Dean, 47 
 Question:‘It is still not known how or if travel documents were obtained for Mani enabling the father to remove him from _ and bring him to this jurisdiction.’

Poland