Scoring formula
Alignment = If D1_02 available, 0.33*(D1_01+D1_02+MAX(D1_03,D1_04); otherwise, 0.5*(D1_01 +MAX(D1_03,D1_04))
Relevance = 1/3*D2_01+1/3*D2_02+D2_03+1/3*MAX(D2_04,D2_05)