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

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

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