Thank you, very very complicated but thank you for that answer. I wonder if setter is clever enough to set a question like that.
Will recheck no 11 but again thank you trying so hard I have been struggling for nearly 5 weeks and still have not got all answers.
Your # 40 looks very much like JAPANESE BLACK PINE, though I don't see how you can get "black" to have anything to do with "biro" --- are sure about that element?