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

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

*GRAMMAR*
tufa -> BLUE 
 wif -> YELLOW 
 fep -> GREEN 
 dax -> PURPLE 
 u1 lug x1 -> [x1] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 