PERSON@1 's PERSON@2 -LRB- Latin : perhaps PERSON@3 , `` the MISC@1 wall '' -RRB- is a stone and turf fortification built by the LOCATION@1 across the width of what is now northern LOCATION@2 .

PERSON@1 's PERSON@2 -LRB- Latin : PERSON@4 -RRB- is a stone and sod fortification built by the LOCATION@1 in northern LOCATION@2 to prevent military attacks by the MISC@2 tribes .
