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

*QUERY*
IN: wif tufa wif OUT: GREEN GREEN GREEN GREEN
IN: gazzer kiki wif OUT: GREEN PINK
IN: gazzer OUT: PINK
IN: zup kiki zup fep wif OUT: YELLOW YELLOW YELLOW YELLOW GREEN
IN: lug lug OUT: BLUE BLUE
IN: zup zup lug kiki lug OUT: YELLOW YELLOW BLUE BLUE
IN: wif gazzer kiki zup OUT: GREEN YELLOW PINK
IN: zup kiki zup OUT: YELLOW YELLOW
IN: zup OUT: YELLOW
IN: gazzer tufa lug OUT: PINK BLUE BLUE PINK

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