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

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

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