diff --git a/exercises/sum-of-multiples/canonical-data.json b/exercises/sum-of-multiples/canonical-data.json
index 48f37c0c8c..82ff53946e 100644
--- a/exercises/sum-of-multiples/canonical-data.json
+++ b/exercises/sum-of-multiples/canonical-data.json
@@ -1,64 +1,90 @@
 {
-    "cases": [
-        {
-            "factors": [3, 5],
-            "limit": 1,
-            "expected": 0
-        },
-        {
-            "factors": [3, 5],
-            "limit": 4,
-            "expected": 3
-        },
-        {
-            "factors": [3, 5],
-            "limit": 10,
-            "expected": 23
-        },
-        {
-            "factors": [3, 5],
-            "limit": 100,
-            "expected": 2318
-        },
-        {
-            "factors": [3, 5],
-            "limit": 1000,
-            "expected": 233168
-        },
-        {
-            "factors": [7, 13, 17],
-            "limit": 20,
-            "expected": 51
-        },
-        {
-            "factors": [4, 6],
-            "limit": 15,
-            "expected": 30
-        },
-        {
-            "factors": [5, 6, 8],
-            "limit": 150,
-            "expected": 4419
-        },
-        {
-            "factors": [5, 25],
-            "limit": 51,
-            "expected": 275
-        },
-        {
-            "factors": [43, 47],
-            "limit": 10000,
-            "expected": 2203160
-        },
-        {
-            "factors": [1],
-            "limit": 100,
-            "expected": 4950
-        },
-        {
-            "factors": [],
-            "limit": 10000,
-            "expected": 0
-        }
-    ]
+  "exercise": "sum-of-multiples",
+  "version": "1.0.0",
+  "cases": [
+    {
+      "description": "multiples of 3 or 5 up to 1",
+      "property": "sum",
+      "factors": [3, 5],
+      "limit": 1,
+      "expected": 0
+    },
+    {
+      "description": "multiples of 3 or 5 up to 4",
+      "property": "sum",
+      "factors": [3, 5],
+      "limit": 4,
+      "expected": 3
+    },
+    {
+      "description": "multiples of 3 or 5 up to 10",
+      "property": "sum",
+      "factors": [3, 5],
+      "limit": 10,
+      "expected": 23
+    },
+    {
+      "description": "multiples of 3 or 5 up to 100",
+      "property": "sum",
+      "factors": [3, 5],
+      "limit": 100,
+      "expected": 2318
+    },
+    {
+      "description": "multiples of 3 or 5 up to 1000",
+      "property": "sum",
+      "factors": [3, 5],
+      "limit": 1000,
+      "expected": 233168
+    },
+    {
+      "description": "multiples of 7, 13 or 17 up to 20",
+      "property": "sum",
+      "factors": [7, 13, 17],
+      "limit": 20,
+      "expected": 51
+    },
+    {
+      "description": "multiples of 4 or 6 up to 15",
+      "property": "sum",
+      "factors": [4, 6],
+      "limit": 15,
+      "expected": 30
+    },
+    {
+      "description": "multiples of 5, 6 or 8 up to 150",
+      "property": "sum",
+      "factors": [5, 6, 8],
+      "limit": 150,
+      "expected": 4419
+    },
+    {
+      "description": "multiples of 5 or 25 up to 51",
+      "property": "sum",
+      "factors": [5, 25],
+      "limit": 51,
+      "expected": 275
+    },
+    {
+      "description": "multiples of 43 or 47 up to 10000",
+      "property": "sum",
+      "factors": [43, 47],
+      "limit": 10000,
+      "expected": 2203160
+    },
+    {
+      "description": "multiples of 1 up to 100",
+      "property": "sum",
+      "factors": [1],
+      "limit": 100,
+      "expected": 4950
+    },
+    {
+      "description": "multiples of an empty list up to 10000",
+      "property": "sum",
+      "factors": [],
+      "limit": 10000,
+      "expected": 0
+    }
+  ]
 }