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

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

*GRAMMAR*
wif -> GREEN 
 zup -> RED 
 fep -> YELLOW 
 kiki -> PINK 
 u1 lug x1 -> [x1] [u1] 
 x1 tufa x2 -> [x2] [x1] [x2] 
 u1 gazzer u2 -> [u2] [u1] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 