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

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

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