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

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

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