*SUPPORT*
IN: lug OUT: BLUE
IN: lug gazzer lug OUT: BLUE BLUE
IN: tufa fep OUT: RED RED
IN: tufa gazzer tufa OUT: RED RED
IN: wif gazzer wif OUT: YELLOW YELLOW
IN: blicket lug gazzer blicket OUT: GREEN BLUE GREEN
IN: lug tufa kiki OUT: BLUE RED RED
IN: blicket OUT: GREEN
IN: blicket kiki OUT: GREEN GREEN
IN: wif fep OUT: YELLOW YELLOW
IN: blicket gazzer lug OUT: GREEN BLUE
IN: lug tufa OUT: BLUE RED
IN: tufa OUT: RED
IN: tufa kiki OUT: RED RED

*QUERY*
IN: blicket wif gazzer lug OUT: GREEN YELLOW BLUE
IN: tufa lug gazzer wif OUT: RED BLUE YELLOW
IN: wif blicket wif gazzer blicket OUT: YELLOW GREEN YELLOW GREEN
IN: blicket gazzer wif OUT: GREEN YELLOW
IN: lug lug fep OUT: BLUE BLUE BLUE
IN: wif kiki OUT: YELLOW YELLOW
IN: blicket lug kiki OUT: GREEN BLUE BLUE
IN: lug kiki OUT: BLUE BLUE
IN: blicket blicket fep OUT: GREEN GREEN GREEN
IN: wif OUT: YELLOW

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