[lemma=of] [lemma=impotence] [lemma=","] [□] □
[lemma=of] [lemma=impotence] [lemma=","] [□=□] □
[lemma=of] [lemma=impotence] [lemma=","] [□ & □] □
At first , however , the alien invasion only exacerbates their sense of impotence , rendering the nation powerless at the hands of an inscrutable force .