However , discoveries of earth-like planets are important because they indicate the probable frequency and distribution of earth-sized terrestrial planets .
However discoveries of Earth-sized terrestrial planets are important as they may indicate the probable frequency and distribution of Earth-like planets .

Are these two sentences paraphrases of each other?
no

The 1960 San Diego State Aztecs football team represented San Diego State College during the 1960 NCAA College Division football season .
The 1960 San Diego State Aztecs football team represents San Diego State College football season during the 1960 NCAA College Division .

Are these two sentences paraphrases of each other?
yes

In February 2014 , the opening ceremony for the monument to the victims of the massacre in Usak was held in Khojaly .
In February 2014 , the opening ceremony for the monument to the victims of the Usak massacre was held in Khojaly .

Are these two sentences paraphrases of each other?
yes

Born in 1783 in Sheffield , the second son of Isabella and Thomas Beilby . In 1783 the family moved to Birmingham .
Born in 1783 in Sheffield as second son of Isabella and Thomas Beilby , the family moved to Birmingham in 1783 .

Are these two sentences paraphrases of each other?
yes