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

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

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