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

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

*GRAMMAR*
blicket -> PURPLE 
 fep -> BLUE 
 lug -> YELLOW 
 wif -> GREEN 
 x1 zup x2 -> [x2] [x2] [x1] [x1] 
 u1 tufa u2 -> [u2] [u1] 
 x1 dax u1 -> [u1] [x1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 