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

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

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