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

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

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