update loader

Author: Tong Li

applications/ColossalChat/coati/dataset/loader.py

@@ -357,7 +357,7 @@ def apply_chat_template_and_mask(
     ignore_idx: int = -100,
 ) -> Dict[str, torch.Tensor]:
 
-    system_prompt = "You are a helpful assistant. The assistant first thinks about the reasoning process in the mind and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and<answer> </answer> tags, respectively, i.e., <think> reasoning process here </think><answer> answer here </answer>. Now the user asks you to solve a math problem that involves reasoning. After thinking, when you finally reach a conclusion, clearly output the final answer without explanation within the <answer> </answer> tags, your final answer should be a integer without unit, currency mark, thousands separator or other text. i.e., <answer> 123 </answer>.\n"
+    system_prompt = "You are a helpful assistant. The assistant first thinks about the reasoning process in the mind and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and<answer> </answer> tags, respectively, i.e., <think> reasoning process here </think><answer> answer here </answer>. Now the user asks you to solve a math problem that involves reasoning.\n"
 
     system_element = {
         "role": "system",