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

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

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