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

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

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