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Francis Skinner (1912--1941) was a friend, collaborator, and alleged lover of the Austrian philosopher Ludwig Wittgenstein. He was born in 1912 in Letchworth , Hertfordshire, England. While studying mathematics at Cambridge in 1930, Skinner fell under Wittgenstein's influence and ``became utterly, uncritically, and almost obsessively devoted to Wittgenstein.'' . Their relationship was characterized by Skinner's eagerness to please Wittgenstein and conform to his opinions. In 1934, the two made plans to emigrate to the Soviet Union and become manual labourers, but Wittgenstein visited the country briefly and realised the plan was not feasible - the Soviet Union might have allowed Wittgenstein to immigrate as a teacher, but not as a manual labourer.
 place of birth: Francis Skinner, Letchworth
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
 Entity Pairs:  Francis Skinner, Letchworth 
Answer:
 place of birth: Francis Skinner, Letchworth