1901
Other writers contributed scripts , including Joe Ahearne ( who also directed some episodes - the only person to do both on the series ) , Ian Iqbal Rashid , Amelia Bullmore , and Matthew Graham .
 person: Joe Ahearne; person: Ian Iqbal Rashid; person: Amelia Bullmore; person: Matthew Graham
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Joe Ahearne; person: Ian Iqbal Rashid; person: Amelia Bullmore; person: Matthew Graham