input: [0] 11. [ILLINOIS COST MANUAL] Most construction is considered average or “C Grade” which use a multiplying factor of 1.0 [REFINEMENT] Grade can be set in between a range i.e. B+10 is 1.32 [ATTRIBUTE] 
output: ORIGINAL GRADE OF CONSTRUCTION AA-2.25 A-1.50 B-1.22 C-1.00 D-.82 E-.50