Definition: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Which North-American Post-painterly abstraction influence of Guillem Ramos-Poquí had the most career paintings? Passage:His colour field paintings show the influence of Rothko and North-American Post-painterly abstraction, especially Barnett Newman, Kenneth Noland and Frank Stella. He reached a post-Bauhaus geometric synthesis rooted in theories concerning visual perception, demonstrating an indebtedness to the geometry and colour of Johannes Itten, Rudolf Arnheim, and Josef Albers. In Paris he became acquainted with a Bauhaus pupil of Paul Klee, Mordecai Ardon, while in Chicago he met Gyorgy Kepes who, together with Moholy-Nagy, founded the New Bauhaus (today the IIT Institute of Design in Illinois). Further encounters with Ola Okuniewska (Ola Wolpe) and Clement Greenberg also impacted his work. His passion for geometry continued throughout his career, right up until the present day. During the mid-70s he started teaching in London. His extensive knowledge of the techniques of painting led to him giving a series of demonstrations at the National Gallery and at several art colleges. In London he founded the Essendine Art Centre, where he taught advanced printmaking, life drawing and techniques of painting to young art college graduates. One of the specialized courses focused on 'The Technique of Icon Painting.' The success of the course led to the commission of a book on this subject, published by Search Press Ltd. It has been translated into seven languages.


a