41. Currently, Panorama In Interlingua is the most prominent of several Interlingua periodicals. 42. Currently, Panorama In Interlingua is the most prominent of several Interlingua periodicals. 43. Another set of rules covers the translation from interlingua to the target language. 44. All source language development corpora are translated to interlingua . 45. With respect to the secondary control languages, Interlingua has articles, unlike Russian. 46. Most of these irregularities also exist in Interlingua 's source languages; Russian. 47. Deprecators suggest that they complicate the active use of Interlingua and may confuse beginners. 48. Union Mundial pro Interlingua , Netherlands : 1991. 49. The main disadvantage of this strategy is the difficulty of creating an adequate interlingua . 50. The grammar of Interlingua is simple and easy.