Alcoa (NYSE: AA - news ) rose 2.98% after the aluminium giant unveiled plans to split into two separate companies, while Kellogg (Hamburg: 944624.HM - news ) slid 0.66% after saying it would buy Egypt-based Mass Food Group in a deal worth approximately $150m.
Refer to the input text as context and select the correct relationship between 'Alcoa' and 'aluminium' from the available options.
Options: product/material produced, parent organization, subsidiary, developer