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

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

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