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

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

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