Interpretations of Analyst 1 and 2 based on in situ analysis of residues, directly on the stone artefacts (BT: blind test; CL: confidence level—on scale from 0 = uncertain to 4 = certain).

Scores: 0 (wrong), 0,5 (partially correct), 1 (correct).评分标准：0分（错误，wrong）、0.5分（部分正确，partially correct）、1分（完全正确，correct）。