score = (x) -> 
  if x == "Yes"
    10
  else
    0
  
weights = [0.2, 0.2, 0.2, 0.2, 0.2]
right_to_safe_environment = [commitment, impacts_identification, tracking_negative_impact, preventing_mitigating_remediating_negative_impact, commitment_to_safety]

weights.reduce((weighted_sum, weight, index) -> 
              weighted_sum + weight*score(right_to_safe_environment[index])
             , 0)