Sentence:  The solitary, lumbering trolls of Scandinavian mythology would sometimes be turned to stone by exposure to sunlight. Barack Obama is hoping that several <WSD>measures</WSD> announced on June 4th will have a similarly paralysing effect on their modern incarnation, the patent troll. 
Meaning of the word marked with <WSD> tags:  A piece of legislation. (from 18th c.)