<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _expected_condition_find_element_containing_text(self, element_text_pair):
 """Tries to find the element and checks that it contains the specified text, but does not thrown an exception if the element is not found :param element_text_pair: Tuple with 2 items where: [0] element: PageElement or element locator as a tuple (locator_type, locator_value) to be found [1] text: text to be contained into the element :returns: the web element if it contains the text or False :rtype: selenium.webdriver.remote.webelement.WebElement or appium.webdriver.webelement.WebElement """

        element, text = element_text_pair
        web_element = self._expected_condition_find_element(element)
        try:
            return web_element if web_element and text in web_element.text else False
        except StaleElementReferenceException:
            return False