def specimen_reporter(server_name, url_base, families):
    """Produce a report containing urls for a list of families"""
    report = []
    report.append(f"***{server_name} specimens to inspect***")
    for family in sorted(families):
        family_url = url_base.format(family.replace(" ", "+"))
        report.append(family_url)
    if len(report) == 1:
        report.append("No urls to inspect")
    report.append("\n")
    return "\n".join(report)