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

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

*GRAMMAR*
zup -> PURPLE 
 lug -> GREEN 
 tufa -> RED 
 wif -> BLUE 
 u1 fep -> [u1] [u1] [u1] 
 u1 gazzer -> [u1] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 