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

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

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