4087
In 1665 , Robert Hooke termed the building block of all living organisms as " cells " after looking at a piece of cork and observing a cell-like structure , however , the cells were dead and gave no indication to the actual overall components of a cell .
 person: Robert Hooke
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Robert Hooke