[relationship] (1 [relationship link])
Jean Pierre Etienne Vaucher [is]
[[a great-nephew] of Jean Vaucher].
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[indeed,]
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Jean Vaucher
(1 [relationship link])
[is] [at the same time]
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[ 父 of Jean Vaucher]
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[[a great-grandfather of Jean Pierre Etienne Vaucher]