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

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

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