From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

Given Relationship: 'be commander in', Sentence: 'On issue after issue our hyper-partisan President has abused both the chain of command and his trust as Commander in Chief .'
Commander

Given Relationship: 'be part of', Sentence: 'Expressing displeasure over Raj Thackeray statements that allegedly resulted in violence and attacks against north Indians in Mumbai and other parts of Maharashtra , the Bench said t is a dangerous tendency .'
parts

Given Relationship: 'develop', Sentence: 'We will be using the Java language developed by Sun Microsystems , and will develop a solution to problems using the following stages of the software development process : analysis , design , implementation , testing and documentation .'

develop