You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.

Context : Aldo Martínez Echevarria (born August 27, 1968 in Pinar del Rio) is retired male wrestler from Cuba. 
Subject : Aldo Martínez 
Relation : sex or gender
Is Aldo Martínez a male or female?

Context : Johannes Magirus (26 March 1537 -- 4 July 1614) was a German Lutheran Theologian. 
Subject : Johannes Magirus 
Relation : occupation
What was Johannes Magirus's career?

Context : Solomon Meredith was born in Guilford County, North Carolina, to David and Mary Farrington Meredith. 
Subject : Solomon Meredith 
Relation : military branch

Which military did Solomon Meredith serve with?