Update sample_data.py

sample_data.py

@@ -165,7 +165,6 @@ CONCEPT_MAP_JSON = """
 }
 """
 
-# JSON for Synoptic Chart (horizontal hierarchy) - AI related, 4 levels
 SYNOPTIC_CHART_JSON = """
 {
   "central_node": "AI Project Lifecycle",
@@ -249,7 +248,6 @@ SYNOPTIC_CHART_JSON = """
 }
 """
 
-# JSON for Radial Diagram (central expansion) - AI related, 3 levels with 5->10 structure
 RADIAL_DIAGRAM_JSON = """
 {
   "central_node": "AI Core Concepts & Domains",
@@ -374,7 +372,6 @@ PROCESS_FLOW_JSON = """
 }
 """
 
-# New JSON for Work Breakdown Structure (WBS) Diagram - similar to image, but not identical
 WBS_DIAGRAM_JSON = """
 {
   "project_title": "AI Model Development Project",
@@ -476,3 +473,112 @@ WBS_DIAGRAM_JSON = """
 }
 
 """
+
+TIMELINE_JSON = """
+{
+  "title": "AI Development Timeline",
+  "events": [
+    {
+      "id": "event_1",
+      "label": "Machine Learning Foundations",
+      "date": "1950-1960",
+      "description": "Early neural networks and perceptrons"
+    },
+    {
+      "id": "event_2",
+      "label": "Expert Systems Era",
+      "date": "1970-1980",
+      "description": "Rule-based AI systems"
+    },
+    {
+      "id": "event_3",
+      "label": "Neural Network Revival",
+      "date": "1980-1990",
+      "description": "Backpropagation algorithm"
+    },
+    {
+      "id": "event_4",
+      "label": "Machine Learning Boom",
+      "date": "1990-2000",
+      "description": "Support Vector Machines, Random Forests"
+    },
+    {
+      "id": "event_5",
+      "label": "Deep Learning Revolution",
+      "date": "2010-2020",
+      "description": "CNNs, RNNs, and breakthrough applications"
+    },
+    {
+      "id": "event_6",
+      "label": "Transformer Era",
+      "date": "2020-Present",
+      "description": "GPT, BERT, and Large Language Models"
+    }
+  ]
+}
+"""
+
+BINARY_TREE_JSON = """
+{
+  "root": {
+    "id": "root",
+    "label": "50",
+    "left": {
+      "id": "left_1",
+      "label": "30",
+      "left": {
+        "id": "left_2",
+        "label": "20",
+        "left": {
+          "id": "left_4",
+          "label": "10"
+        },
+        "right": {
+          "id": "right_4",
+          "label": "25"
+        }
+      },
+      "right": {
+        "id": "right_2",
+        "label": "40",
+        "left": {
+          "id": "left_5",
+          "label": "35"
+        },
+        "right": {
+          "id": "right_5",
+          "label": "45"
+        }
+      }
+    },
+    "right": {
+      "id": "right_1",
+      "label": "70",
+      "left": {
+        "id": "left_3",
+        "label": "60",
+        "left": {
+          "id": "left_6",
+          "label": "55"
+        },
+        "right": {
+          "id": "right_6",
+          "label": "65"
+        }
+      },
+      "right": {
+        "id": "right_3",
+        "label": "80",
+        "left": {
+          "id": "left_7",
+          "label": "75"
+        },
+        "right": {
+          "id": "right_7",
+          "label": "90"
+        }
+      }
+    }
+  }
+}
+"""