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

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

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