diff --git a/lab-python-error-handling.ipynb b/lab-python-error-handling.ipynb
index 3e50ef8..dc01881 100644
--- a/lab-python-error-handling.ipynb
+++ b/lab-python-error-handling.ipynb
@@ -46,13 +46,161 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code goes here"
+    "def get_unique_list_f(lst):\n",
+    "    \"\"\"\n",
+    "    Takes a list as an argument and returns a new list with unique elements from the first list.\n",
+    "\n",
+    "    Parameters:\n",
+    "    lst (list): The input list.\n",
+    "\n",
+    "    Returns:\n",
+    "    list: A new list with unique elements from the input list.\n",
+    "    \"\"\"\n",
+    "    try:\n",
+    "        new_list = list(set(lst))\n",
+    "    except TypeError as e:\n",
+    "        print(f'Error: {e}')\n",
+    "    else:\n",
+    "        return new_list\n",
+    "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 48,
+   "id": "4502d432",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def count_case_f(string):\n",
+    "    \"\"\"\n",
+    "    Returns the number of uppercase and lowercase letters in the given string.\n",
+    "\n",
+    "    Parameters:\n",
+    "    string (str): The string to count uppercase and lowercase letters in.\n",
+    "\n",
+    "    Returns:\n",
+    "    A tuple containing the count of uppercase and lowercase letters in the string.\n",
+    "    \"\"\"\n",
+    "     \n",
+    "    \n",
+    "    upper_gen = sum(1 for char in string if char.isupper())       \n",
+    "    lower_gen = sum(1 for char in string if char.islower())\n",
+    "            \n",
+    "    return ({'Uppercase count':upper_gen},{'Lowercase count':lower_gen})\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 74,
+   "id": "d37d63c4",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def remove_punctuation_f(sentence):\n",
+    "    \"\"\"\n",
+    "    Removes all punctuation marks (commas, periods, exclamation marks, question marks) from a sentence.\n",
+    "\n",
+    "    Parameters:\n",
+    "    sentence (str): A string representing a sentence.\n",
+    "\n",
+    "    Returns:\n",
+    "    str: The sentence without any punctuation marks.\n",
+    "    \"\"\"\n",
+    "    try:\n",
+    "        punctuation = ';:!?,.\"\\''\n",
+    "        for mark in punctuation:\n",
+    "            sentence = sentence.replace(mark,'')\n",
+    "    except AttributeError as e:\n",
+    "        print(f'Error: {e}')\n",
+    "        print('Input has to be a string')\n",
+    "    else:\n",
+    "        return sentence\n",
+    "\n",
+    "    \n",
+    "    \n",
+    " \n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 75,
+   "id": "524ef67a",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Error: 'list' object has no attribute 'replace'\n",
+      "Input has to be a string\n"
+     ]
+    }
+   ],
+   "source": [
+    "remove_punctuation_f([1,2,3])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 70,
+   "id": "66d27873",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def word_count_f(sentence):\n",
+    "    \"\"\"\n",
+    "    Counts the number of words in a given sentence. To do this properly, first it removes punctuation from the sentence.\n",
+    "    Note: A word is defined as a sequence of characters separated by spaces. We can assume that there will be no leading or trailing spaces in the input sentence.\n",
+    "    \n",
+    "    Parameters:\n",
+    "    sentence (str): A string representing a sentence.\n",
+    "\n",
+    "    Returns:\n",
+    "    int: The number of words in the sentence.\n",
+    "    \"\"\"\n",
+    "    import string # Quitamos los símbolos usando el \"catálogo\" de string.punctuation\n",
+    "    # Esto es un generador. Es lo mismo que un lista pero este no almacena los datos. §\n",
+    "    # Cuando lo usa lo elimina, por lo que apenas ocupa memoria. \n",
+    "    try:\n",
+    "        lenght_sentence = len(''.join(char for char in sentence if char not in string.punctuation).split())\n",
+    "    except TypeError as e:\n",
+    "        print(f'Error; {e}')\n",
+    "    else:\n",
+    "        return lenght_sentence"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 71,
+   "id": "da7e7929",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Error; 'in <string>' requires string as left operand, not int\n"
+     ]
+    }
+   ],
+   "source": [
+    "word_count_f([1,2,3])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "36c7e267",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -66,7 +214,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.4"
   }
  },
  "nbformat": 4,