Disability is the opposite of Potential. Potential is related to Seed. Seed is related to New. 
Read is related to Activity. Activity is related to Practice. Convention is a type of Practice. Convention is a type of Assembly. 
Disability <--Antonym--> Potential <--RelatedTo--> Seed <--RelatedTo--> New 
Read <--RelatedTo--> Activity <--RelatedTo--> Practice <--IsA-- Convention --IsA--> Assembly 