1. chestnut   Tanne   Ahorn   Eiche   Kastaniebaum   Hint Half-n-half Clue   2. pine   Ahorn   Tanne   Eiche   Kiefer   Half-n-half Clue   3. elm   Ulme   Pappel   Kiefer   Zeder   Half-n-half Clue   4. fir   Tanne   Pappel   Birke   Ahorn   Half-n-half Clue   5. cedar   Zeder   Eiche   Kastaniebaum   Buche   Half-n-half Clue   6. poplar   Kiefer   Pappel   Zeder   Kastaniebaum   Half-n-half Clue   7. birch   Birke   Kiefer   Kastaniebaum   Eiche   Half-n-half Clue