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

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

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