Definition: In this task you are given a list of triplets of the form [subject, predicate, object] and the output should be a question based on the triplets but with the subject and/or object replaced with blanks (represented using two or more consecutive underscores). Triplet values encompassed in [*] are special tokens that can be replaced with synonyms. The objective is to construct a question in a manner that (a) captures the facts specified in at least one of the triplets, and (b) ideally contains a limited number of blanks such that it is a well-formed question that is easy to answer. A blank can represent a single word or a phrase.
Input: [['11 Diagonal Street', 'LOCATION', 'South Africa'], ['South Africa', 'CAPITAL', 'Cape Town'], ['South Africa', 'LEADER_NAME', 'Jacob Zuma'], ['South Africa', 'ETHNIC_GROUP', 'Asian South Africans']]

11 Diagonal Street is located in _____ which has the capital city of Cape Town. The leader of South Africa is Jacob Zuma and one of the ethnic groups are the Asian South Africans.