source: [lemma=be] [lemma=excite] [lemma=□] □
destination: [lemma=be] [lemma=excite] [lemma=to] □
spec: On the other hand , but equally urgent , is the need to develop effective contraceptive technologies that also prevent STD / HIV , and from this perspective , it will be increasingly difficult to view pregnancy prevention totally apart from STD / HIV prevention . I 'm excited to be going home but sad to be leaving Sweden .