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

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

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