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

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

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