reverted change in translate function example due to extra credit

Author: Rise Riyo

part-4.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:1ea7dc49f946546b6ab2dc4d73a06849f0f6994a0ee6912c4368f0caf20e1f3f"
+  "signature": "sha256:2e85a1190fdc5f2a5f5567835384cdf4dc4a717102ea921578a4ee8c4d69eccc"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -353,13 +353,15 @@
       "\n",
       "def translate(sentence):\n",
       "    spanish_words = sentence.split()\n",
-      "    english_words = [words[w] for w in spanish_words]\n",
+      "    english_words = []\n",
+      "    for w in spanish_words:\n",
+      "        english_words.append(words[w])\n",
       "    return \" \".join(english_words)"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 35
+     "prompt_number": 39
     },
     {
      "cell_type": "code",
@@ -373,13 +375,13 @@
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 36,
+       "prompt_number": 40,
        "text": [
         "'the dog ate the burrito green'"
        ]
       }
      ],
-     "prompt_number": 36
+     "prompt_number": 40
     },
     {
      "cell_type": "code",
@@ -405,7 +407,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "**Extra Credit:** turn the translate function into a single list comprehension."
+      "**Extra Credit:** Try using a list comprehension in the translate function."
      ]
     },
     {