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

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

*GRAMMAR*
lug -> YELLOW 
 fep -> PURPLE 
 dax -> GREEN 
 wif -> BLUE 
 x1 gazzer x2 -> [x2] [x1] 
 u1 tufa -> [u1] [u1] 
 u1 zup u2 -> [u2] [u2] [u1] [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 