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

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

*GRAMMAR*
fep -> YELLOW 
 tufa -> PINK 
 wif -> RED 
 kiki -> GREEN 
 u1 gazzer -> [u1] [u1] [u1] [u1] 
 u1 dax -> [u1] [u1] [u1] 
 u1 lug u2 -> [u2] [u1] [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 