Assertion: flask's content | /r/HasProperty | header
Facets:
Source sentences:
text: </ nav > < section class = "content" > < header > {% block header %}{% endblock %} </ header > {% for message in get_flashed_messages () %} < div class = "flash" > {{ message }} </ div
text: </ nav > < section class = "content" > < header > {% block header %}{% endblock %} </ header > {% for message in get_flashed_messages () %} < div class = "flash" > {{ message }} </ div