51.   Very high frequency direction finding is an aid to navigation.

52.   We need to get food aid to the more remote villages.

53.   We urge that all commercially Marketed aids to stopping smoking should undergo the same regulatory scrutiny.

54.   Western aid to Third World countries barely covers the interest on their loans.

55.   With this in mind a Grammar Development Environment is provided as an aid to the development of a natural language grammar.

56.   The US threatened to cut off economic aid to South Africa.

57.   Several charities sent aid to the flood victims.

58.   Herrera pledged that his company will give aid to schools.

59.   The U.N. was supposed to be getting aid to where it was most needed.