1. chestnut   olmo   abeto   castaño   cedro   Hint Half-n-half Clue   2. birch   cedro   álamo   olmo   abedul   Half-n-half Clue   3. oak   pino   roble   cedro   castaño   Half-n-half Clue   4. pine   pino   álamo   roble   abeto   Half-n-half Clue   5. poplar   abedul   castaño   álamo   abeto   Half-n-half Clue   6. cedar   cedro   arce   álamo   haya   Half-n-half Clue   7. elm   olmo   castaño   roble   álamo   Half-n-half Clue