This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Devonport Dockyard is the UK's only naval base that refits nuclear submarines and the Navy estimates that the Dockyard generates about 10% of Plymouth's income. Plymouth has the largest cluster of marine and maritime businesses in the south west with 270 firms operating within the sector. Other substantial employers include the university with almost 3,000 staff, as well as the Tamar Science Park employing 500 people in 50 companies. Several employers have chosen to locate their headquarters in Plymouth, including Hemsley Fraser.
About what percentage of Plymouth's income comes from the Dockyard?

While the Warsaw Pact was established as a balance of power or counterweight to NATO, there was no direct confrontation between them. Instead, the conflict was fought on an ideological basis. Both NATO and the Warsaw Pact led to the expansion of military forces and their integration into the respective blocs. The Warsaw Pact's largest military engagement was Warsaw Pact invasion of Czechoslovakia (with the participation of all Pact nations except Romania and Albania). The Pact failed to function when the Revolutions of 1989 spread through Eastern Europe, beginning with the Solidarity movement in Poland and its success in June 1989.
Which organization was in direct competition with the Warsaw Pact?

More recently, articles in various financial periodicals, most notably Forbes magazine, have pointed to Fidel Castro, General Secretary of the Republic of Cuba since 1959, of likely being the beneficiary of up to $900 million, based on "his control" of state-owned companies. Opponents of his regime claim that he has used money amassed through weapons sales, narcotics, international loans, and confiscation of private property to enrich himself and his political cronies who hold his dictatorship together, and that the $900 million published by Forbes is merely a portion of his assets, although that needs to be proven.

What magazine had articles about Castro benefiting from corruption?