Then on Thursday , President Mahmoud Ahmadinejad said that Tehran was '' presently conducting research '' on the P-2 centrifuge , boasting that it would quadruple Iran 's enrichment powers .
Iran
Tehran
/location/location/contains
Mahmoud Ahmadinejad
Iran
/people/person/nationality
Iran
Tehran
/location/country/capital
PERSON
Mahmoud Ahmadinejad
LOCATION
Tehran
LOCATION
Iran