Crossword puzzle : S

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Across
  1. 2. A type of material
  2. 4. A game found in playground
  3. 7. Brother or sister
  4. 8. A set of words which is complete in itself
  5. 9. A person who looks after sheep
  6. 10. A dark outline on a light background
Down
  1. 1. An English literature figure
  2. 3. A nature reserve
  3. 4. A green leafy vegetable
  4. 5. A large snake
  5. 6. A precious metal
  6. 9. A protective membrane for the brain