adding missing access modifiers
adding missing access modifiers in local prototype
refactoring fragmentation of clue
DBpedia resources in YAGO NS are now excluded
clues containing apostrophe-s now transformed, adding further exception check for solution structure
removing debugging lines
ClueQueryImpl now checks for objects as well as subjects
refactoring ClueQueryImpl to improve performance
adding NewClueQueryImpl with new querying algorithms
adding label - singer - to hasArtist property
prepping introduction of fill-in-the-blank clues