[X]Threat to breathing due to cave-in, falling earth and other substances, occurrence at other specified place
[x]threat to breathing due to cave-in, falling earth and other substances, occurrence at other specified place
[X]Thret breth due cave-in fall erth+oth sub oth specif plce
[x]thret breth due cave-in fall erth+oth sub oth specif plce