Assertion: antenna's construction | /r/HasProperty | infeasible
Facets:
value: for economic reasons
type: CAUSE
value: for longwave transmitters
type: TRANSITIVE-OBJECT
value: because of problems with flight safety
type: CAUSE
value: in most cases
type: TEMPORAL
Source sentences:
text: For longwave transmitters, however, the construction of halfwave masts is infeasible in most cases, either for economic reasons or because of problems with flight safety.