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

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

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