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

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

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