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

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

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