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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 strand_unknown(db, transcript):
 """ for unstranded data with novel transcripts single exon genes will have no strand information. single exon novel genes are also a source of noise in the Cufflinks assembly so this removes them """

    features = list(db.children(transcript))
    strand = features[0].strand
    if strand == ".":
        return True
    else:
        return False