original: burrendong arboretum is a sanctuary for endangered australian flora and covers 1.60 km ² .
simplifications: burrendong arboretum is a sanctuary for endangered australian flora . burrendong arboretum is a safe place for endangered australian flora and covers 1.60 km ² . burrendong arboretum is an endangered australian flora that covers 1.6 km ² . burrendong -lrb- place where lots of woody plants are grown -rrb- is a safe place for endangered australian flora and covers 1.60 km ² . burrendong arboretum is a protected place for endangered australian plants and covers 1.60 km ² . burrendong arboretum is a safe place for at risk australian plants and cover 1.60 km2 . burrendong arboretum is a shelter for endangered australian flora and covers 1.60 km ² . burrendong arboretum is a sanctuary for endangered australian flora and covers 1.60 km ² .