diff --git a/assays/with-observation-units/datasets/phenotyping.csv b/assays/with-observation-units/datasets/phenotyping.csv
new file mode 100644
index 0000000000000000000000000000000000000000..5acd1e11517e61b5cf675f44f5e8a0241dd2cbe8
--- /dev/null
+++ b/assays/with-observation-units/datasets/phenotyping.csv
@@ -0,0 +1,9 @@
+Assay Name,Date,Trait,Value
+JHI-11-1-1,2024-09-04T16:04:05+0100,FlwCol_E_1to3,purple
+JHI-11-1-1,2024-09-04T16:04:05+0100,PlntAlv_M_pcs,42
+JHI-13-1-2,2024-09-04T16:04:09+0100,FlwCol_E_1to3,purple
+JHI-13-1-2,2024-09-04T16:04:09+0100,PlntAlv_M_pcs,15
+JHI-11-1-1,2024-09-04T16:04:05+0100,FlwCol_E_1to3,purple
+JHI-11-1-1,2024-09-04T16:04:05+0100,PlntAlv_M_pcs,42
+JHI-13-1-2,2024-09-04T16:04:09+0100,FlwCol_E_1to3,purple
+JHI-13-1-2,2024-09-04T16:04:09+0100,PlntAlv_M_pcs,15
diff --git a/assays/with-observation-units/isa.assay.xlsx b/assays/with-observation-units/isa.assay.xlsx
index 30123bb8b0538798cd4e70955aeb940a24798ac0..23cc89dff51cb50860a78c2237e7c6abec6c6d20 100644
Binary files a/assays/with-observation-units/isa.assay.xlsx and b/assays/with-observation-units/isa.assay.xlsx differ