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

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

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