原级：parish
1. EST about levee failures that would ultimately lead to massive flooding of the city and its surrounding parishes.
2. parishes
2. The victims'bodies were found in seven different south Louisiana parishes.
3. The wintry weather is rare in south Louisiana, though the state's northern parishes see it about once a year.
4. The mayor said he had no choice but to begin allowing residents back because neighboring parishes were reopening Wednesday morning.