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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_report(self):
 """Another report, but not context based"""

    ostr = ''
    ostr += "target\tquery\tcnt\ttotal\n"
    poss = ['-','A','C','G','T']
    for target in poss:
      for query in poss:
        ostr += target+ "\t"+query+"\t"+str(self.matrix[target][query])+"\t"+str(self.alignment_length)+"\n"
    return ostr