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

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

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