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

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

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