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- SELECT DISTINCT nom_fournisseur FROM Fournisseurs F
- INNER JOIN Catalogue C
- ON C.id_fournisseur = F.id_fournisseur
- INNER JOIN Articles A
- ON A.id_article = C.id_article
- WHERE couleur_article != 'noir' AND F.id_fournisseur IN (SELECT F.id_fournisseur FROM Fournisseurs F
- INNER JOIN Catalogue C
- ON C.id_fournisseur = F.id_fournisseur
- INNER JOIN Articles A
- ON A.id_article = C.id_article
- WHERE couleur_article != 'argente')
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