Sentence:  A Diagram of neuronal circuitry and positions of extracellular microelectrodes (EME) for recording from stellate ceils ($7), intracellular microelectrodes (IME) for recording from Purkinje cells (PC), two local stimulating electrodes (LSE 1 and LSE 2) for stimulating parallel fibers (PF), <WSD>offbeam</WSD> and onbeam respectively. 
Meaning of the word marked with <WSD> tags:  Not in line with excited parallel neurofibers.