    Séntencé. 1: For sexample, a’ case “Study of  the ‘effectiveness ‘of ‘a job ‘taining. program’  might “need: to! ‘take Into’ account: generat:  eéotiomié trends, such ‘as. unemployinent  Yates. in the conimiinity.    Sentence ." 2:."Geiieral”. eéonomic’. trends  wouldn't “have ‘to ‘he “consideréd. by ‘a case.  study on ‘job’training effectiveness.