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 <coreference id="1">
        <mention representative="true">
          <sentence>1</sentence>
          <start>1</start>
          <end>3</end>
          <head>2</head>
          <text>Stanford University</text>
        </mention>
        <mention>
          <sentence>2</sentence>
          <start>1</start>
          <end>2</end>
          <head>1</head>
          <text>It</text>
        </mention>
        <mention>
          <sentence>2</sentence>
          <start>3</start>
          <end>10</end>
          <head>5</head>
          <text>a great university , founded in 1891</text>
        </mention>
        <mention>
          <sentence>2</sentence>
          <start>3</start>
          <end>6</end>
          <head>5</head>
          <text>a great university</text>
        </mention>
      </coreference>