28494
Timing and synchronization are the key challenges of merge-in-transit , and usually storage areas close to receiving/shipping are needed to hold the earliest arriving inventory .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None