*SUPPORT*
IN: fep lug wif OUT: GREEN BLUE
IN: gazzer zup tufa fep kiki gazzer OUT: RED PINK BLUE RED
IN: wif lug tufa OUT: PINK GREEN
IN: fep gazzer lug tufa OUT: BLUE PINK RED
IN: tufa zup gazzer wif kiki wif OUT: PINK RED GREEN GREEN
IN: wif zup wif wif zup fep lug wif OUT: GREEN GREEN GREEN GREEN BLUE
IN: tufa lug tufa OUT: PINK PINK
IN: fep OUT: BLUE
IN: tufa OUT: PINK
IN: wif zup tufa lug fep kiki tufa OUT: GREEN BLUE PINK PINK
IN: fep wif tufa kiki gazzer OUT: BLUE GREEN PINK RED
IN: wif lug wif OUT: GREEN GREEN
IN: tufa zup wif fep OUT: PINK GREEN BLUE
IN: fep lug tufa kiki fep kiki wif OUT: PINK BLUE BLUE GREEN

*QUERY*
IN: wif lug fep OUT: BLUE GREEN
IN: tufa gazzer OUT: PINK RED
IN: fep gazzer lug fep kiki gazzer OUT: BLUE BLUE RED RED
IN: tufa lug gazzer kiki wif OUT: RED PINK GREEN
IN: wif lug wif kiki fep OUT: GREEN GREEN BLUE
IN: fep lug fep kiki fep OUT: BLUE BLUE BLUE
IN: fep tufa zup tufa lug wif kiki gazzer OUT: BLUE PINK GREEN PINK RED
IN: gazzer zup fep wif lug wif OUT: RED BLUE GREEN GREEN
IN: tufa lug gazzer OUT: RED PINK
IN: wif fep kiki fep OUT: GREEN BLUE BLUE

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