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

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

*GRAMMAR*
dax -> RED 
 fep -> PURPLE 
 wif -> YELLOW 
 lug -> GREEN 
 u1 kiki -> [u1] [u1] 
 x1 gazzer x2 -> [x2] [x1] [x1] [x2] [x1] [x2] 
 u1 tufa x1 -> [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 