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

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

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