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

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

*GRAMMAR*
tufa -> PINK 
 lug -> RED 
 gazzer -> GREEN 
 dax -> YELLOW 
 u1 blicket -> [u1] [u1] 
 x1 kiki x2 -> [x1] [x2] [x2] 
 u1 wif u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 