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

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

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