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

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

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