Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Example Input: Question: Does the yeast histone chaperone hif1p function with RNA in nucleosome assembly?
Answer: These results suggest that specific RNA species may function in concert with histone chaperones to assemble chromatin.
Example Output: yes

Example Input: Question: Does expression microarray identify the unliganded glucocorticoid receptor as a regulator of gene expression in mammary epithelial cells?
Answer: This work presents the first identification of targets of unliganded GR. We propose that the balance between targets of liganded and unliganded GR signaling is responsible for controlling differentiation and apoptosis, respectively, and suggest that gene regulation by unliganded GR may represent a mechanism for reducing the risk of breast tumourigenesis by the elimination of abnormal cells.
Example Output: yes

Example Input: Question: Are organ boundary NAC-domain transcription factors implicated in the evolution of petal fusion?
Answer: Together with previous data, our results demonstrate conservation of petunia CUC-like genes in establishing inter-floral whorl organ boundaries, as well as functional evolution to affect the fusion of petunia petals.
Example Output:
yes