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

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

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