*SUPPORT*
IN: dax OUT: BLUE
IN: wif OUT: PINK
IN: wif lug kiki OUT: GREEN GREEN PINK PINK
IN: wif blicket OUT: PINK PINK PINK
IN: tufa lug kiki OUT: GREEN GREEN RED RED
IN: dax fep OUT: BLUE BLUE BLUE
IN: dax lug tufa OUT: RED RED BLUE BLUE
IN: kiki OUT: GREEN
IN: wif lug dax OUT: BLUE BLUE PINK PINK
IN: wif dax blicket OUT: PINK BLUE BLUE BLUE
IN: kiki blicket OUT: GREEN GREEN GREEN
IN: tufa fep OUT: RED RED RED
IN: tufa OUT: RED
IN: tufa lug tufa OUT: RED RED RED RED

*QUERY*
IN: tufa tufa lug dax OUT: RED BLUE BLUE RED RED
IN: kiki lug tufa OUT: RED RED GREEN GREEN
IN: kiki fep OUT: GREEN GREEN GREEN
IN: kiki dax tufa wif OUT: GREEN BLUE RED PINK
IN: tufa kiki blicket OUT: RED GREEN GREEN GREEN
IN: wif kiki blicket OUT: PINK GREEN GREEN GREEN
IN: dax dax blicket OUT: BLUE BLUE BLUE BLUE
IN: dax tufa kiki dax blicket OUT: BLUE RED GREEN BLUE BLUE BLUE
IN: wif tufa blicket OUT: PINK RED RED RED
IN: wif lug wif OUT: PINK PINK PINK PINK

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