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

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

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