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Britain needed to establish whether L. Ron Hubbard was a charalatan to defend itself against any libel action. The evidence was gathered during the 1970s and included the claim by a US official that the sect had sent bogus Doctor of Philosophy s to hypnotise a legal investigator, forcing him to retire due to his mental health.
 education degree: L. Ron Hubbard, Doctor of Philosophy
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:  L. Ron Hubbard, Doctor of Philosophy 
Answer:
 education degree: L. Ron Hubbard, Doctor of Philosophy