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

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

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