This diploma thesis investigates the meaning of the prepositional genitive in written materials that consist of literary and journalistic works of primary and secondary schools. All works about this matter were presented at the national Festival of works in literature, drama, theatre and journalism, which were later published in anthology LiDraNo 2014. The analysis of meaning of the prepositional genitive relies on the prototypical meaning which is based on spatial relations and follows the division that Branimir Belaj and Goran Tanacković Faletar presented in Cognitive grammar of Croatian language, published in 2014. This thesis gives a brief overview of the development of the concept of semantic roles within a number of different linguistic theories such as Case Grammar Theory by Charles Fillmore, Localist Case Grammar by John Anderson, Role and Reference Grammar by Robert Van Valin and Cognitive Grammar by Ronald W. Langacker. In the part of the thesis dealing with the case system of Croatian language the order of adoption of key terms related to the declension in the National curriculum for primary schools is briefly analyzed and the importance of teaching prototype role is emphasized, which is followed by a reference to the interpretation of case meanings in recent grammars of Croatian language. The experimental part of the thesis deals with determination of word types, cases, prepositions that collocate the genitive, as well as determination of the meaning of the prepositional genitive. All the meanings of individual prepositional phrase are backed up by examples from the matter.