The Lemon Tree cont'd. Linguist GEOFFREY NUNBERG remarks on evolution the term the "Balkans". It was first used to describe a mountain region but now refers to the war torn region of the former Yugoslavia. 12:58:30 NEXT SHOW PROMO (:29) PROMO COPY On the next Fresh Air. ."The Lemon Tree" a documentary about an arab and an isreali with claim to the same home. Last month it received the prestigious Overseas Press Club award for best radio story on Foreign Affairs. That's coming up on the next fresh air.