sample-id treatment #q2:types categorical B04c c B12c c B17t t B14t t B24t t B18t t B13t t B06c c B19t t B16t t B02c c B07c c B09c c B08c c B20t t B23t t B03c c B05c c B15t t B22t t B01c c B11c c B21t t B10c c