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

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

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