Table:
text: PRR locomotive classification
General Electric
General Electric
PRR_Class Builder_s_Model Build_date Total_produced Wheel_arrangement Service Power_output
GS4 44 Ton 1948–1950 46 B-B Switcher hp (kW)
GF25 U25B 1965 59 B-B Freight hp (kW)
GF25a U25C 1965 20 C-C Freight hp (kW)
GF28a U28C 1966 15 C-C Freight hp (kW)
GF30a U30C 1967 5 C-C Freight hp (kW)

Question: What is the total amount of freight produced by u28c under General Electric's PRR locomotive classification?

Question: For PRR locomotive classification, what is build date for General Electric PRR class gf30a?

Question: What is the PRR locomotive classification for axle arrangement cc and overall less than 15 PRR class General Electric?

Question: What was the model for the PRR class of gf28a freight under General Electric's PRR locomotive classification?