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

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

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