BUR #20 has been approved by @VeliteAquila.
create alias boot -> boots
create implication boots -> footwear
create implication sandals -> footwear
create implication perones -> boots
create implication calcei -> boots
create implication caligae -> sandals
create implication khuff -> footwear
create implication endromis -> boots
create implication clogs -> footwear
create implication cavalry_boots -> boots
create alias riding_boots -> cavalry_boots
create implication clogs -> wood
create implication high_heels -> footwear
create implication kothornos -> boots
create implication krepis -> sandals
create implication embas -> boots
create implication cavalry_boots -> rider
general BUR for a variety of footwear.