On the question where – on Spotify, where we don’t get into specific details, as you are aware, but I’m repeating my position, which is the relationship between UMG and Spotify has been based on working very closely on developing innovative marketing campaigns and tools towards artists to reach the biggest possible audience on Spotify’s platform.
What is the relationship between 'has been' and 'Spotify' in the context of the input sentence.
Options: distributed by, subsidiary, brand, location of formation