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

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

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