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

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

*GRAMMAR*
zup -> YELLOW 
 wif -> BLUE 
 tufa -> PURPLE 
 lug -> GREEN 
 x1 gazzer u1 -> [x1] [u1] 
 x1 fep x2 -> [x2] [x1] 
 x1 dax -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 