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

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

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