Case C-286/03: Judgment of the Court (Grand Chamber) of 21 February 2006 (reference for a preliminary ruling from the Oberster Gerichtshof (Austria)) — Silvia Hosse v Land Salzburg (Social security for migrant workers — Regulation (EEC) No 1408/71 — Article 4(2b) — Special non-contributory benefits — Austrian benefit intended to cover the risk of reliance on care — Classification of the benefit and lawfulness of the residence condition from the point of view of Regulation No 1408/71 — Dependant of the insured person)