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    "#  Write a Python program to count the occurrences of each word in a given sentence\n",
    "\n",
    "def word_count(str):\n",
    "    counts = dict()\n",
    "    words = str.split()\n",
    "\n",
    "    for word in words:\n",
    "        if word in counts:\n",
    "            counts[word] += 1\n",
    "        else:\n",
    "            counts[word] = 1\n",
    "\n",
    "    return counts\n",
    "\n",
    "print( word_count('the quick brown fox jumps over the lazy dog.'))"
   ]
  }
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