[tag=VBZ] [word=been] [tag=DT] □ □
[tag=VBZ] [word=been] [tag=DT] □+ □
[tag=VBZ] [word=been] [tag=DT] □* □
There has been no breakdown of the human , technological , and natural resources upon which the economy is built . One well known strategy ( noted earlier ) has been the preservation of certain highly valued fruit trees during the process of woodland clearance , such that even in severely deforested areas , fruit trees are the last to be removed . Some say this has been a century of confrontation , conflict and war .