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

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

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