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

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

*GRAMMAR*
dax -> GREEN 
 zup -> PURPLE 
 kiki -> YELLOW 
 lug -> RED 
 u1 wif u2 -> [u2] [u1] [u2] 
 u1 fep -> [u1] [u1] 
 u1 tufa -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 