Print the lines with ERROR and the number of times it happened(count) in descending order


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    N

    We have a file with following lines in it,we need to find all the lines with "Error" message type..save the message and its count and print the messages in the descending order or count

    <TIMESTAMP><MESSAGETYPE><MESSAGE>
    <4:02><ERROR><Error message1>
    <14:13><Error><Error message2>
    <10:03><Warning><Warning message1>
    <12:03><Warning><Warning message2>


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