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

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

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