Decide is related to Opt. Opt is the opposite of Join. Link can be used for Join. 
Branch is related to Arm. Arm is related to Like. Like is related to Care. Care is related to Mind. 
Decide <--RelatedTo--> Opt <--Antonym--> Join <--UsedFor-- Link 
Branch <--RelatedTo--> Arm <--RelatedTo--> Like <--RelatedTo--> Care <--RelatedTo--> Mind 