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

*QUERY*
IN: fep gazzer zup OUT: YELLOW PINK PURPLE
IN: wif fep zup tufa wif lug OUT: GREEN YELLOW GREEN PURPLE GREEN YELLOW GREEN PURPLE
IN: wif lug OUT: GREEN GREEN
IN: zup tufa zup OUT: PURPLE PURPLE
IN: fep wif tufa fep OUT: YELLOW YELLOW GREEN
IN: wif tufa gazzer OUT: PINK GREEN
IN: fep OUT: YELLOW
IN: fep tufa gazzer OUT: PINK YELLOW
IN: gazzer OUT: PINK
IN: zup blicket OUT: PURPLE PURPLE

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