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

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

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