bnf ::= I was on the way to the exam when suddenly loop so I was late and despite my days of solid revision, failed.
loop ::= I was incident | I was incident and then loop | I was incident and then loop incident ::= trapped in a place with a noun | verbed by a noun | verbed by a noun , but I was saved by the intervention of a noun , | verbed by a noun , I tried to escape but I was incident | faced with a dangerous looking noun escape ::= run away | fight back | get away | get to safety | overpower it verbed ::= beaten up | attacked | ambushed | savaged | fiercely struck | threatened | assaulted | nearly decapitated noun ::= cat | dog | pie | mouse | bird | badger | rat | grape | hamster | egg | chicken | sheep | goat | haddock place ::= burning house | burning skyscraper | disused factory | minefield | cardboard box | conversation