Refer to the input text as context and select the correct relationship between 'Boko Haram' and 'Abubakar Shekau' from the available options.
Options: legal form, owned by, chairperson, brand

Boko Haram has released a new video on the insurgency in Nigeria, with its leader Abubakar Shekau again failing to … see more » Copyright © 2015 Leadership.
chairperson