[relationship] (2 [relationship links])
Georges Doret [is]
[[a brother-in-law of Hélène Kuhn].
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[indeed,]
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Marc Matthey-Doret Dit Doret
(1 [relationship link])
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Mathilde Doret
(1 [relationship link])
[are] [at the same time]
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[[[the parents] of [the spouse]] of Hélène Kuhn]
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[[the parents] of Georges Doret]