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

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

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