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

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

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