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

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

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