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

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

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