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.
Input: Sentence: 'We are actively working on an MT system between Spanish and Mapudungun , a native language spoken in southern Chile , and have started working on Quechua , a native language spoken mainly in Peru , Ecuador and Bolivia .', Argument/Subject 1: 'spanish', Argument/Subject 2: 'chile'
Output:
be language of