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

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

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