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

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

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