Refer to the input text as context and select the correct relationship between 'Interfax' and 'news agency' from the available options.
Options: product/material produced, platform, brand, subsidiary

Russian news agency Interfax reported that Aeroflot was planning to acquire Transaero for the symbolic price of one ruble (one US or euro cent), citing a source present at the talks with Shuvalov.
product/material produced