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

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

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