1. Pappel   pine   elm   cedar   poplar   Hint Half-n-half Clue   2. Buche   poplar   oak   beech   cedar   Half-n-half Clue   3. Birke   cedar   birch   poplar   maple   Half-n-half Clue   4. Eiche   poplar   maple   oak   cedar   Half-n-half Clue   5. Tanne   fir   cedar   birch   pine   Half-n-half Clue   6. Zeder   beech   birch   cedar   maple   Half-n-half Clue   7. Ulme   poplar   fir   elm   beech   Half-n-half Clue