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

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

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