Ballarat has a healthy environment in comparison to Melbourne ; however , as a growing regional city there are issues including pollution , waterway health and invasive species .
Melbourne has a healthy environment in comparison to Ballarat , but as a growing regional city there are issues such as pollution , waterway health and invasive species .

Are these two sentences paraphrases of each other?
no

In 1955 , it became the Central Electricity Generating Board , which in turn became the Central Electricity Authority in 1957 .
In 1955 , it became the Central Electricity Authority , which in turn in 1957 the Central Electricity Generating Board .

Are these two sentences paraphrases of each other?
no

Pseudostellaria jamesiana is a species of pink flowering plant in the tuber family , known by the generic names sticky starworth and pink starwort .
Pseudostellaria jamesiana is a species of flowering plant in the pink family known by the common names tuber starwort and sticky starwort .

Are these two sentences paraphrases of each other?
no

In the Adams division , the Boston Bruins and Montreal Canadians never missed the playoffs in this format , while the Buffalo Sabres missed only twice .
In the Adams division , Buffalo Sabres never missed the playoffs in this format , while the Boston Bruins and Montreal Canadiens were only missing twice .

Are these two sentences paraphrases of each other?
no