<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def list_publications():
 """ Return list of all publications in basic graphic HTML render. """

    publications = search_publications(
        DBPublication(is_public=True)
    )

    return SimpleTemplate(INDEX_TEMPLATE).render(
        publications=publications,
        compose_path=web_tools.compose_path,
        delimiter=":",
    )