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

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

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