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

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

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