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

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

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