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

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

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