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

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

*GRAMMAR*
wif -> RED 
 fep -> GREEN 
 blicket -> BLUE 
 kiki -> YELLOW 
 u1 gazzer x1 -> [x1] [u1] 
 u1 tufa -> [u1] [u1] 
 u1 dax u2 -> [u2] [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 