Provide the names of NAME_1' father and uncle, without assuming that NAME_2 is his grandfather. Format the answer as JSON, using the fields "father" and "uncle" with the values being arrays of strings.

Text: "NAME_1 father is NAME_3, whose brother is NAME_4. NAME_4 has another brother, NAME_5. NAME_6 is the father of NAME_5." In your response, capitalize a few words to stress main points. Please limit the number of words with all capital letters to less than 18.
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