I am totally lost on the subject of Fischer projection. I have no clue on where to begin solving : (S) 3-chloro-1-penten-4-yne
http://www.mhhe.com/physsci/chemistry/carey/student/olc/ch07projections.html
http://www.mhhe.com/physsci/chemistry/carey/student/olc/ch07projections.html