Generate an overlapping word between the given two sentences. When you find the overlapping words, they don't have to match exactly, e.g., "survival" and "survive" are valid overlapping words. Little words like "the" or "of" don't count! You must generate significant words which are not the stop words.

Sentence1: Endocrine glands include the pituitary, thyroid, parathyroid, adrenal, pineal and thymus glands. 
Sentence2: Some pituitary hormones can control the thyroid gland.
thyroid

Sentence1: if an object is made of a material then that object has the properties of that material. 
Sentence2: An object is an item in the real world.
object

Sentence1: Endocrine hormones travel throughout the body in the blood. 
Sentence2: Endocrine glands secrete directly into the blood.

Endocrine