Complex sentence: While Naruto & Sakura look for a suitable place to wait for their erstwhile sensei, they encounter a masked female ninja, who is apparently hurt, who seems to be running from three other ninjas, who are apparently loyal to Orochimaru.
Split into simpler sentences: While Naruto & Sakura look for a suitable place to wait for their erstwhile sensei, they encounter a masked female ninja, who is apparently hurt. She seems to be running from three other ninjas, who are apparently loyal to Orochimaru.