Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Urban Historic Centre of Cienfuegos ' has mentioned 'Sugar' in the following places:
Occurrence Sentence Text Source
Since the late 1960s, Cienfuegos has become one of Cuba's main industrial centers, especially in the energy and sugar sectors.
Its advantageous trading location on the historically eponymous Bay of Jagua was used by the Cuban sugar oligarchy when a railroad was built between both cities between 1853 and 1860.
Cienfuegos, one of the chief seaports of Cuba, is a center of the sugar trade as well as coffee and tobacco.
A commercial port town, located in the heart of a fertile agricultural region producing sugar, cane, mango, tobacco and coffee, its prosperity was primarily linked to the 19th-century sugar boom.