Converse of object

• produce: Since it contained at least 40 percent impurities when manufactured, sarin produced at Al Muthanna had a short shelf life.

• manufacture: Since it contained at least 40 percent impurities when manufactured, sarin produced at Al Muthanna had a short shelf life.

Adjective modifier

• deadly: Another 6,454 of these rockets filled with the deadly nerve agent sarin were accounted for and destroyed by inspectors between 1992 and 1993.

Modifies a noun

• nerve: The sect released sarin nerve gas at numerous points on the Tokyo subway, affecting a distance of more than eight miles.

• agent: Yesterday, as I expected - weaponised sarin nerve agent and mustard gas finally have been found in Iraq.

Noun used with modifier

• nerve: One teaspoon of the nerve agent sarin can cause up to 10,000 deaths.

• agent: One teaspoon of the nerve agent sarin can cause up to 10,000 deaths.

• gas: The British military had been testing the nerve gas sarin on thousands of young servicemen.