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

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

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