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

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

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