diff --git a/ch02/01_main-chapter-code/ch02.ipynb b/ch02/01_main-chapter-code/ch02.ipynb
index bdfcd03..d91527b 100644
--- a/ch02/01_main-chapter-code/ch02.ipynb
+++ b/ch02/01_main-chapter-code/ch02.ipynb
@@ -341,7 +341,7 @@
     }
    ],
    "source": [
-    "preprocessed = re.split(r'([,.?_!\"()\\']|--|\\s)', raw_text)\n",
+    "preprocessed = re.split(r'([,.:;?_!\"()\\']|--|\\s)', raw_text)\n",
     "preprocessed = [item.strip() for item in preprocessed if item.strip()]\n",
     "print(preprocessed[:30])"
    ]
@@ -364,7 +364,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "4649\n"
+      "4690\n"
      ]
     }
    ],
@@ -414,7 +414,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "1159\n"
+      "1130\n"
      ]
     }
    ],
@@ -478,32 +478,32 @@
       "('But', 22)\n",
       "('By', 23)\n",
       "('Carlo', 24)\n",
-      "('Carlo;', 25)\n",
-      "('Chicago', 26)\n",
-      "('Claude', 27)\n",
-      "('Come', 28)\n",
-      "('Croft', 29)\n",
-      "('Destroyed', 30)\n",
-      "('Devonshire', 31)\n",
-      "('Don', 32)\n",
-      "('Dubarry', 33)\n",
-      "('Emperors', 34)\n",
-      "('Florence', 35)\n",
-      "('For', 36)\n",
-      "('Gallery', 37)\n",
-      "('Gideon', 38)\n",
-      "('Gisburn', 39)\n",
-      "('Gisburns', 40)\n",
-      "('Grafton', 41)\n",
-      "('Greek', 42)\n",
-      "('Grindle', 43)\n",
-      "('Grindle:', 44)\n",
-      "('Grindles', 45)\n",
-      "('HAD', 46)\n",
-      "('Had', 47)\n",
-      "('Hang', 48)\n",
-      "('Has', 49)\n",
-      "('He', 50)\n"
+      "('Chicago', 25)\n",
+      "('Claude', 26)\n",
+      "('Come', 27)\n",
+      "('Croft', 28)\n",
+      "('Destroyed', 29)\n",
+      "('Devonshire', 30)\n",
+      "('Don', 31)\n",
+      "('Dubarry', 32)\n",
+      "('Emperors', 33)\n",
+      "('Florence', 34)\n",
+      "('For', 35)\n",
+      "('Gallery', 36)\n",
+      "('Gideon', 37)\n",
+      "('Gisburn', 38)\n",
+      "('Gisburns', 39)\n",
+      "('Grafton', 40)\n",
+      "('Greek', 41)\n",
+      "('Grindle', 42)\n",
+      "('Grindles', 43)\n",
+      "('HAD', 44)\n",
+      "('Had', 45)\n",
+      "('Hang', 46)\n",
+      "('Has', 47)\n",
+      "('He', 48)\n",
+      "('Her', 49)\n",
+      "('Hermia', 50)\n"
      ]
     }
    ],
@@ -601,7 +601,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[1, 58, 2, 872, 1013, 615, 541, 763, 5, 1155, 608, 5, 1, 69, 7, 39, 873, 1136, 773, 812, 7]\n"
+      "[1, 56, 2, 850, 988, 602, 533, 746, 5, 1126, 596, 5, 1, 67, 7, 38, 851, 1108, 754, 793, 7]\n"
      ]
     }
    ],