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

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

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