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

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

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