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

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

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