Detailed Instructions: Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.
Problem:Sentence: 'Farsi is spoken today primarily in Iran and Afghanistan , but was historically a more widely understood language in an area ranging from the Middle East to India .', Argument/Subject 1: 'farsus', Argument/Subject 2: 'iran'
Solution:
be speak in