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

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

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