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

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

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