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

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

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