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