Relations between Washington and Tehran remain bitter and brittle 26 years after the embassy was seized , particularly because of American and European efforts to close Iran 's nuclear production facilities .
Iran /location/location/contains Tehran
Iran /location/country/capital Tehran
NNS IN NNP CC NNP VBP JJ CC JJ CD NNS IN DT NN VBD VBN , RB IN IN JJ CC JJ NNS TO VB NNP POS JJ NN NNS .
Iran
LOCATION
Tehran
LOCATION
/location/location/contains
Iran
LOCATION
Tehran
LOCATION
/location/country/capital