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

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

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