Input: Identify the most salient words:

wonderful colors in this flat texture cut stone wall

Output: color
texture
wall

Input: Identify the most salient words:

a teacher in a classroom of pupils

Output: classroom
pupil
teacher

Input: Identify the most salient words:

A man is falling through the sky and then releases his parachute.

Output: parachute
release
sky

Input: Identify the most salient words:

isolated chestnut and acorn on a red maple leaf

Output:
acorn
isolate
leaf