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

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

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