    Sentence 1: SCE argied that Lévmark.was irying' io “shield -  itsalf from competition by" installing-'a chip. omits’ toner  Cartridges make it dificule for third-party manisfdcturets to  make-geheric cartridges’:    ‘Sentence 2+ The. compaiiy’also-sarged hit Lixmark’ was  ‘ying 10:sgieash: competition ‘by. installing a micrichip oi its.  toner » cartridges ta"-maké."it difficult. for third-party  manijctorers-to make generic cartridges :    