This heavier radioactive isotope may be new depending on the chemical element ( stable or unstable ) .
This new heavier isotope can be stable or unstable ( radioactive ) depending on the chemical element involved .

Are these two sentences paraphrases of each other? OPTIONS:
- no
- yes
no

Conscription has been around in Denmark since the Viking Age , where 1 physical man of every 10th court had to serve the king .
In Denmark , there has been conscription since the Viking Age , where a physical man of every 10th court had to serve the king .

Are these two sentences paraphrases of each other? OPTIONS:
- no
- yes
yes

On 29 September 2001 , Deutsche Bahn opened a new tunnel to the new underground train station Filderstadt .
Deutsche Bahn opened a new underground tunnel to the new Filderstadt railway station on 29 September 2001 .

Are these two sentences paraphrases of each other? OPTIONS:
- no
- yes
no

Alton is located at the Mississippi River above the mouth of the Missouri River .
Alton is located on the Missouri River above the mouth of the Mississippi .

Are these two sentences paraphrases of each other? OPTIONS:
- no
- yes
no