“…This can make significant contribution to the implementation and the broader utilisation of semantic web in human practice. Users with various backgrounds and expectations are becoming exposed to semantic data, and need to explore such data for different purposes (searching, browsing, summarising, making sense, taking decisions, or learning) (Shneiderman [8]) (Brunetti, García [2]) (Thakker et al [9]). Semantic data exploration is becoming a key activity in a range of application domains, such as government and public organisations (Hendler, Holm et al [4], Höffner, Martin et al [5]), education (Dietze, Yu et al [3]), life science (William, Harland et al [10]), cultural heritage (Hyvönen [6]), media and entertainment (Kobilarov, Scott et al [7]) to name a few.…”