*SUPPORT*
IN: fep kiki wif OUT: PURPLE GREEN
IN: lug OUT: PINK
IN: zup kiki fep OUT: GREEN BLUE
IN: wif gazzer dax lug gazzer OUT: PURPLE PURPLE PINK PINK
IN: wif zup OUT: PURPLE BLUE
IN: wif zup kiki zup dax zup gazzer OUT: PURPLE BLUE BLUE BLUE BLUE
IN: wif kiki lug OUT: PINK PURPLE
IN: wif kiki zup OUT: BLUE PURPLE
IN: wif OUT: PURPLE
IN: fep wif OUT: GREEN PURPLE
IN: fep fep gazzer OUT: GREEN GREEN GREEN
IN: wif lug wif fep kiki wif OUT: PURPLE PINK PURPLE PURPLE GREEN
IN: lug dax fep OUT: PINK GREEN
IN: zup zup OUT: BLUE BLUE

*QUERY*
IN: wif gazzer OUT: PURPLE PURPLE
IN: wif gazzer dax lug OUT: PURPLE PURPLE PINK
IN: fep zup fep gazzer OUT: GREEN BLUE GREEN GREEN
IN: zup gazzer OUT: BLUE BLUE
IN: zup lug dax lug kiki lug OUT: BLUE PINK PINK PINK
IN: fep OUT: GREEN
IN: zup wif OUT: BLUE PURPLE
IN: lug kiki wif OUT: PURPLE PINK
IN: fep wif kiki lug dax wif gazzer OUT: GREEN PINK PURPLE PURPLE PURPLE
IN: fep gazzer OUT: GREEN GREEN

*GRAMMAR*
zup -> BLUE 
 lug -> PINK 
 fep -> GREEN 
 wif -> PURPLE 
 x1 dax x2 -> [x1] [x2] 
 u1 gazzer -> [u1] [u1] 
 u1 kiki u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 