def METHOD_NAME(self, response):
    """Parse or generate event description."""
    category_field = response.xpath(
        "//div[contains(., 'Category:') and contains(@class, 'field-label')]"
    )
    field_items = category_field.xpath(
        "./following::div[contains(@class, 'field-items')]"
    )
    return " ".join(
        field_items.xpath(".//p/text()").extract()
        + field_items.xpath(".//strong/text()").extract()
    ).strip()