*SUPPORT*
IN: wif gazzer tufa fep blicket dax gazzer OUT: GREEN RED GREEN PURPLE BLUE
IN: blicket fep tufa gazzer fep kiki OUT: BLUE PURPLE GREEN PURPLE PURPLE
IN: blicket fep kiki OUT: BLUE PURPLE PURPLE
IN: wif OUT: RED
IN: fep fep kiki OUT: PURPLE PURPLE PURPLE
IN: wif tufa gazzer OUT: RED GREEN
IN: fep OUT: PURPLE
IN: wif kiki OUT: RED RED
IN: blicket kiki dax wif OUT: RED BLUE BLUE
IN: fep kiki OUT: PURPLE PURPLE
IN: gazzer tufa fep gazzer dax blicket OUT: BLUE GREEN PURPLE GREEN
IN: wif dax blicket OUT: BLUE RED
IN: blicket OUT: BLUE
IN: gazzer OUT: GREEN

*QUERY*
IN: fep tufa gazzer tufa blicket OUT: PURPLE GREEN BLUE
IN: gazzer tufa wif OUT: GREEN RED
IN: wif tufa blicket tufa fep dax gazzer OUT: GREEN RED BLUE PURPLE
IN: blicket gazzer dax fep OUT: PURPLE BLUE GREEN
IN: blicket tufa gazzer blicket fep gazzer dax wif OUT: RED BLUE GREEN BLUE PURPLE GREEN
IN: blicket kiki OUT: BLUE BLUE
IN: gazzer gazzer kiki OUT: GREEN GREEN GREEN
IN: gazzer kiki OUT: GREEN GREEN
IN: fep blicket OUT: PURPLE BLUE
IN: blicket tufa blicket blicket dax fep OUT: PURPLE BLUE BLUE BLUE

*GRAMMAR*
blicket -> BLUE 
 wif -> RED 
 gazzer -> GREEN 
 fep -> PURPLE 
 x1 dax u1 -> [u1] [x1] 
 u1 kiki -> [u1] [u1] 
 u1 tufa x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 