Utilize the input text as a context reference, choose the right relationship between 'Volvo' and 'truck' from the options.
Options: brand, industry, publisher, product/material produced

And as Kai noted earlier, Daimler and Volvo have their own JV, just wondering if there's a concern that on this commercial truck hydrogen market, the OEMs might go in-house on some of the components related to hydrogen.
product/material produced