*SUPPORT*
IN: tufa OUT: PURPLE
IN: tufa tufa dax lug OUT: PURPLE PURPLE PINK PINK
IN: blicket fep OUT: BLUE BLUE
IN: wif dax blicket fep OUT: GREEN PINK BLUE BLUE
IN: dax OUT: PINK
IN: dax wif lug OUT: PINK GREEN GREEN
IN: wif OUT: GREEN
IN: dax zup blicket OUT: BLUE PINK
IN: tufa fep OUT: PURPLE PURPLE
IN: tufa blicket OUT: PURPLE BLUE
IN: blicket lug OUT: BLUE BLUE
IN: dax fep OUT: PINK PINK
IN: blicket OUT: BLUE
IN: wif fep OUT: GREEN GREEN

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

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