*SUPPORT*
IN: fep fep gazzer zup gazzer wif gazzer lug OUT: BLUE BLUE GREEN PURPLE RED
IN: lug gazzer zup gazzer wif OUT: RED GREEN PURPLE
IN: zup kiki lug wif lug OUT: RED PURPLE RED GREEN
IN: fep gazzer wif OUT: BLUE PURPLE
IN: lug lug gazzer wif OUT: RED RED PURPLE
IN: wif kiki wif fep fep wif gazzer wif OUT: PURPLE BLUE BLUE PURPLE PURPLE PURPLE
IN: zup lug OUT: GREEN RED
IN: zup fep gazzer lug OUT: GREEN BLUE RED
IN: lug tufa wif zup zup fep gazzer lug OUT: PURPLE GREEN GREEN BLUE RED RED
IN: fep wif OUT: BLUE PURPLE
IN: zup zup OUT: GREEN GREEN
IN: wif gazzer wif OUT: PURPLE PURPLE
IN: zup wif OUT: GREEN PURPLE
IN: lug tufa lug lug wif kiki fep OUT: BLUE RED RED PURPLE RED

*QUERY*
IN: wif zup fep tufa fep wif OUT: BLUE PURPLE PURPLE GREEN BLUE
IN: wif tufa lug OUT: RED PURPLE
IN: fep gazzer fep OUT: BLUE BLUE
IN: fep lug lug zup OUT: BLUE RED RED GREEN
IN: wif OUT: PURPLE
IN: lug OUT: RED
IN: wif tufa zup OUT: GREEN PURPLE
IN: fep OUT: BLUE
IN: zup OUT: GREEN
IN: zup gazzer wif kiki zup OUT: GREEN GREEN PURPLE

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