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

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

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