Original sentence: The main beis midrash is located on the second floor of the building which also houses the Kollel Chazon Ish on its upper floors.The rosh yeshiva is Rav Naftoli Elzas, a graduate of Ponevezh Yeshiva
Edited sentence: Although mainly American, most English-speaking countries are represented, as well as many European countries.Due to the small size of the yeshiva, the formal programs are flexible and students can easily switch to shiurim (lessons) which fit their level.He is a graduate of the famous  Ponevezh Yeshiva.It is a combination of a regular yeshiva of the Ponevitch type and a yeshiva for baalei teshuva.Learning is done with original texts in Hebrew or Aramaic, though the lessons are given in English.Nevertheless, in contrast to many baal teshuva yeshivas, the level of religious observance is significantly higher at Marbeh Torah.Rav Elzas was born shortly after the Holocaust in the Dutch town of Borculo as the son of the local rabbi.Students are introduced to Judaism using English and bilingual texts and gradually grow in their learning.The main beis midrash is located on the second floor of the building which also houses the Kollel Chazon Ish on its upper floors, close to the Ponevezh yeshiva.The rosh yeshiva is Rav Naftoli Elzas.The students are friendly, warm and.The yeshiva accepts even students who have almost no knowledge of Judaism.The yeshiva has 6 rabbis and over 50 students.This is unlike other baal teshuva yeshivas which are strictly divided into separate departments for beginners, intermediate and advanced students